| ILLINOIS Climate Normals (1971-2000) other states |
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| ILLINOIS Climate Normals (1971-2000) other states |
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City:ALBION State:IL Lat:38.24N Long:088.04W Elev: 530 ID:110055 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.2 24.9 35.4 45.1 55.3 64.2 67.9 65.8 58.2 46.6 35.8 25.8 45.5 Maximum 37.4 43.5 54.7 66.0 76.2 85.5 89.2 87.5 80.9 69.9 54.3 42.2 65.6 Mean 29.3 34.2 45.1 55.6 65.8 74.9 78.6 76.7 69.6 58.3 45.1 34.0 55.6 Precip. 2.57 2.72 4.29 5.13 4.61 4.19 3.86 3.43 2.89 3.36 4.28 3.51 44.84 HDD 1106 861 619 299 106 5 0 3 35 246 600 960 4840 CDD 0 0 0 15 129 301 420 364 171 37 1 0 1438 City:ALEDO State:IL Lat:41.12N Long:090.45W Elev: 720 ID:110072 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 11.1 16.4 26.4 37.0 48.5 58.8 62.3 59.9 51.4 39.6 28.0 17.0 38.0 Maximum 28.9 34.6 47.3 60.9 71.6 80.8 84.4 82.2 75.2 63.5 46.7 33.5 59.1 Mean 20.0 25.5 36.9 49.0 60.1 69.8 73.4 71.1 63.3 51.6 37.4 25.3 48.6 Precip. 1.27 1.29 2.43 3.69 3.92 4.43 4.21 4.28 3.31 2.73 2.50 1.92 35.98 HDD 1395 1107 873 485 206 24 5 28 117 422 830 1232 6724 CDD 0 0 0 3 53 169 263 217 65 4 0 0 774 City:ALTON MELVIN PRICE L&D State:IL Lat:38.49N Long:090.09W Elev: 430 ID:110137 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 19.4 24.0 33.7 44.6 55.0 64.3 68.7 66.4 58.0 46.2 35.4 24.6 45.0 Maximum 36.0 41.8 52.5 64.1 74.6 83.7 88.1 86.3 79.1 67.5 53.2 40.7 64.0 Mean 27.7 32.9 43.1 54.4 64.8 74.0 78.4 76.4 68.6 56.9 44.3 32.7 54.5 Precip. 1.99 2.30 3.47 4.16 4.24 3.22 3.49 3.17 3.14 2.70 3.75 2.91 38.54 HDD 1156 900 680 333 122 8 0 7 48 270 622 1003 5149 CDD 0 0 0 14 115 278 416 359 154 18 0 0 1354 City:ANNA 2 NNE State:IL Lat:37.29N Long:089.15W Elev: 640 ID:110187 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 22.5 26.5 35.0 44.4 53.4 61.7 65.9 63.7 56.2 44.7 35.9 26.7 44.7 Maximum 42.4 49.1 59.5 69.8 78.1 86.1 89.5 88.5 81.6 71.6 57.9 46.2 68.4 Mean 32.5 37.8 47.3 57.1 65.8 73.9 77.7 76.1 68.9 58.2 46.9 36.5 56.6 Precip. 3.59 3.42 4.73 4.70 5.22 4.23 3.26 3.58 3.13 3.38 4.76 4.30 48.30 HDD 1009 763 552 255 90 3 0 3 40 238 544 886 4383 CDD 0 0 1 18 114 272 394 346 157 27 1 0 1330 City:ANTIOCH State:IL Lat:42.29N Long:088.06W Elev: 750 ID:110203 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 11.4 16.0 27.0 36.9 47.2 56.9 62.3 61.3 53.6 41.5 30.1 18.1 38.5 Maximum 27.8 32.9 43.6 56.3 68.8 78.3 82.2 80.3 72.8 61.3 46.1 33.0 57.0 Mean 19.6 24.5 35.3 46.6 58.0 67.6 72.3 70.8 63.2 51.4 38.1 25.6 47.8 Precip. 1.74 1.42 2.17 3.77 3.59 4.22 4.03 4.50 3.50 2.49 2.88 2.19 36.50 HDD 1408 1135 921 554 260 51 8 26 111 427 806 1223 6930 CDD 0 0 0 1 42 129 233 206 55 4 0 0 670 City:APPLE RIVER CANYON SP State:IL Lat:42.27N Long:090.03W Elev: 820 ID:110211 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.36 1.45 2.22 3.60 3.82 4.77 3.96 4.36 3.58 2.73 2.37 1.97 36.19 City:AURORA State:IL Lat:41.46N Long:088.19W Elev: 640 ID:110338 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.5 15.6 26.1 36.2 46.4 55.7 60.6 58.4 49.9 38.2 27.7 16.4 36.8 Maximum 29.4 34.9 46.4 59.3 71.5 80.7 84.2 82.1 75.2 63.1 47.2 34.2 59.0 Mean 20.0 25.3 36.3 47.8 59.0 68.2 72.4 70.3 62.6 50.7 37.5 25.3 48.0 Precip. 1.62 1.52 2.57 3.88 3.91 4.34 4.39 4.38 3.50 2.71 3.17 2.40 38.39 HDD 1397 1113 890 519 237 40 8 27 120 448 828 1232 6859 CDD 0 0 0 1 49 136 237 189 46 3 0 0 661 City:AVON 5 NE State:IL Lat:40.43N Long:090.22W Elev: 640 ID:110356 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.35 1.44 2.73 3.56 4.05 4.23 4.37 3.49 3.54 2.87 2.74 2.00 36.37 City:BARRINGTON 3 SW State:IL Lat:42.07N Long:088.10W Elev: 875 ID:110442 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 9.6 14.7 25.1 36.1 46.5 56.7 61.8 59.6 50.5 39.2 28.6 17.0 37.1 Maximum 27.2 32.7 43.9 57.0 69.3 78.8 82.3 80.0 72.6 60.7 45.6 32.4 56.9 Mean 18.4 23.7 34.5 46.6 57.9 67.8 72.1 69.8 61.6 50.0 37.1 24.7 47.0 Precip. 1.56 1.38 2.33 3.66 4.02 4.27 3.80 4.58 3.32 2.62 2.93 2.09 36.56 HDD 1444 1157 945 555 261 50 6 30 146 470 837 1248 7149 CDD 0 0 0 1 41 133 224 179 42 4 0 0 624 City:BEARDSTOWN State:IL Lat:40.01N Long:090.26W Elev: 450 ID:110492 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.34 1.51 2.75 3.65 4.12 3.38 3.68 3.46 3.26 3.03 3.36 2.52 36.06 City:BEECHER CITY State:IL Lat:39.11N Long:088.47W Elev: 620 ID:110500 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.16 1.93 3.67 3.78 4.70 4.00 3.90 2.80 2.78 3.00 3.73 2.59 39.04 City:BELLEVILLE SIU RESEARCH State:IL Lat:38.31N Long:089.51W Elev: 450 ID:110510 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 22.1 26.7 35.5 44.6 53.9 62.5 66.5 63.7 56.0 45.0 36.1 26.5 44.9 Maximum 39.6 46.1 57.2 68.0 77.3 85.7 89.6 87.8 81.6 71.0 56.0 43.7 67.0 Mean 30.9 36.4 46.4 56.3 65.6 74.1 78.1 75.8 68.8 58.0 46.1 35.1 56.0 Precip. 2.02 2.20 3.54 3.91 4.18 3.97 3.51 3.34 2.98 2.87 3.88 2.97 39.37 HDD 1059 801 579 277 104 6 0 5 39 246 568 928 4612 CDD 0 0 0 16 121 280 404 338 151 29 0 0 1339 City:BENTLEY State:IL Lat:40.21N Long:091.07W Elev: 650 ID:110598 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.22 1.54 2.87 3.46 4.58 3.63 4.13 3.61 3.72 2.82 2.77 2.05 36.40 City:BENTON 2 N State:IL Lat:38.02N Long:088.55W Elev: 450 ID:110608 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.3 25.8 35.5 44.8 54.3 63.3 67.9 65.3 57.6 45.3 36.7 26.3 45.3 Maximum 39.0 45.1 55.7 66.9 76.4 84.9 89.8 88.5 81.1 69.4 56.0 43.4 66.4 Mean 30.2 35.5 45.6 55.9 65.4 74.1 78.9 76.9 69.4 57.4 46.4 34.9 55.9 Precip. 2.90 2.87 4.18 4.50 4.59 4.06 3.19 3.04 2.89 2.94 4.47 3.56 43.19 HDD 1080 827 601 289 108 4 0 1 41 266 561 934 4712 CDD 0 0 0 14 118 278 429 371 172 29 1 0 1412 City:BLOOMINGTON WATERWORKS State:IL Lat:40.30N Long:089.00W Elev: 775 ID:110761 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.52 1.67 3.01 3.58 4.27 3.99 3.77 3.66 3.33 2.61 3.21 2.89 37.51 City:BRADFORD 1 S State:IL Lat:41.10N Long:089.39W Elev: 780 ID:110868 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.32 1.39 2.60 3.21 3.56 3.86 3.62 3.96 3.34 2.47 2.77 2.16 34.26 City:BROOKPORT DAM 52 State:IL Lat:37.08N Long:088.39W Elev: 330 ID:110993 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 25.0 29.0 37.6 46.6 55.9 64.2 68.4 66.1 58.7 46.9 38.0 28.9 47.1 Maximum 42.3 48.3 58.4 68.8 77.5 85.9 89.5 88.4 81.7 71.1 57.7 46.5 68.0 Mean 33.7 38.7 48.0 57.7 66.7 75.1 79.0 77.3 70.2 59.0 47.9 37.7 57.6 Precip. 3.51 3.91 4.42 4.70 4.76 4.03 4.28 3.00 3.27 3.23 4.45 4.37 47.93 HDD 971 737 529 238 79 2 0 1 37 227 515 847 4183 CDD 0 0 1 19 132 304 432 381 192 39 1 0 1501 City:CAHOKIA State:IL Lat:38.34N Long:090.12W Elev: 400 ID:111160 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.0 24.2 35.1 45.5 55.1 64.0 68.4 66.4 58.2 46.6 35.5 25.8 45.4 Maximum 38.1 44.5 55.4 66.7 75.7 84.2 88.7 86.8 79.7 69.1 54.6 42.6 65.5 Mean 29.1 34.4 45.3 56.1 65.4 74.1 78.6 76.6 69.0 57.9 45.1 34.2 55.5 Precip. 2.18 2.47 3.68 3.87 3.87 3.69 3.97 3.68 3.19 3.04 3.73 2.96 40.33 HDD 1114 859 613 281 105 6 0 2 43 248 599 956 4826 CDD 0 0 0 14 116 278 421 362 161 26 0 0 1378 City:CAIRO 3 N State:IL Lat:37.03N Long:089.11W Elev: 310 ID:111166 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 25.6 29.8 39.3 49.6 59.4 67.3 71.2 68.8 60.9 49.2 39.1 30.1 49.2 Maximum 41.1 47.4 57.5 68.5 77.8 86.2 89.7 87.5 81.0 70.5 56.7 45.7 67.5 Mean 33.4 38.6 48.4 59.1 68.6 76.8 80.5 78.2 71.0 59.9 47.9 37.9 58.4 Precip. 3.21 3.55 4.39 4.74 4.76 4.15 4.38 3.63 3.04 3.43 4.40 4.16 47.84 HDD 982 740 519 215 67 3 0 1 26 207 513 840 4113 CDD 0 0 3 37 179 356 478 408 205 49 1 0 1716 City:CANTON 1 ESE State:IL Lat:40.33N Long:090.01W Elev: 650 ID:111250 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.37 1.90 3.06 4.01 4.79 4.32 4.44 3.64 3.55 3.03 3.32 2.42 39.85 City:CARBONDALE SEWAGE PLANT State:IL Lat:37.45N Long:089.10W Elev: 390 ID:111265 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.8 24.2 33.5 42.4 52.1 61.4 65.9 63.1 55.1 43.3 35.0 25.6 43.5 Maximum 39.3 45.3 55.3 66.2 75.5 84.0 87.8 86.8 79.9 69.2 55.4 43.8 65.7 Mean 30.1 34.8 44.4 54.3 63.8 72.7 76.9 75.0 67.5 56.3 45.2 34.7 54.6 Precip. 2.91 3.01 4.25 4.45 4.78 4.77 3.35 3.94 3.13 2.93 4.62 3.71 45.85 HDD 1085 847 639 329 134 10 0 8 57 288 594 939 4930 CDD 0 0 0 9 96 241 368 315 132 18 0 0 1179 City:CARLINVILLE State:IL Lat:39.17N Long:089.53W Elev: 630 ID:111280 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 17.4 22.0 31.9 43.0 52.8 62.1 66.6 64.4 55.7 44.5 33.4 23.4 43.1 Maximum 34.9 41.2 52.9 65.1 75.0 83.5 87.3 85.6 79.1 67.7 52.2 39.6 63.7 Mean 26.2 31.6 42.4 54.1 63.9 72.8 77.0 75.0 67.4 56.1 42.8 31.5 53.4 Precip. 1.96 1.95 3.54 3.95 4.25 3.89 3.66 3.34 2.88 2.67 3.63 2.87 38.59 HDD 1204 936 701 340 130 8 0 7 60 292 667 1039 5384 CDD 0 0 0 12 95 242 370 317 132 16 0 0 1184 City:CARLYLE RESERVOIR State:IL Lat:38.38N Long:089.22W Elev: 501 ID:111290 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.8 22.9 33.1 42.8 53.0 62.1 66.6 64.6 56.7 44.8 34.9 23.8 43.7 Maximum 36.3 42.6 53.7 64.6 74.6 83.6 87.7 86.0 79.4 68.0 54.0 41.7 64.4 Mean 27.6 32.8 43.4 53.7 63.8 72.9 77.2 75.3 68.1 56.4 44.5 32.8 54.0 Precip. 2.17 2.41 3.82 3.91 4.23 4.44 3.69 2.84 3.05 3.01 3.84 3.23 40.64 HDD 1161 903 671 346 135 9 0 6 45 289 618 1000 5183 CDD 0 0 0 8 98 244 376 326 137 22 0 0 1211 City:CARMI 6 NW State:IL Lat:38.09N Long:088.13W Elev: 390 ID:111296 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.91 2.69 4.22 4.29 4.81 3.91 3.61 2.86 2.81 2.84 4.25 3.38 42.58 City:CARMI 3 State:IL Lat:38.05N Long:088.11W Elev: 335 ID:111302 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 22.3 25.7 34.7 43.8 53.5 62.8 67.0 64.3 56.7 44.1 36.1 25.9 44.7 Maximum 40.2 46.0 56.9 68.0 77.1 85.5 88.9 87.5 81.1 70.4 56.2 44.4 66.9 Mean 31.3 35.9 45.8 55.9 65.3 74.2 78.0 75.9 68.9 57.3 46.2 35.2 55.8 Precip. 3.08 3.01 4.41 4.18 5.00 4.56 4.59 3.57 3.14 2.61 4.23 4.00 46.38 HDD 1045 817 597 285 110 4 0 3 42 269 566 926 4664 CDD 0 0 0 10 121 279 401 340 158 29 0 0 1338 City:CASEY State:IL Lat:39.18N Long:087.58W Elev: 620 ID:111329 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.53 2.38 3.41 4.30 4.09 3.60 4.58 3.80 3.02 3.22 3.69 3.05 41.67 City:CENTRALIA State:IL Lat:38.33N Long:089.08W Elev: 460 ID:111386 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.56 2.70 3.94 4.64 4.62 4.12 3.95 2.75 3.10 3.32 4.05 3.17 42.92 City:CHANNAHON DRESDEN ISLAN State:IL Lat:41.24N Long:088.17W Elev: 505 ID:111420 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.74 1.66 2.68 3.67 4.00 4.55 4.12 3.41 3.09 2.70 3.16 2.47 37.25 City:CHARLESTON State:IL Lat:39.28N Long:088.11W Elev: 680 ID:111436 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.6 23.5 32.8 42.5 52.3 61.0 65.0 63.3 55.9 44.9 34.4 23.7 43.2 Maximum 35.2 41.0 52.7 65.0 75.5 84.5 87.8 85.6 79.3 67.6 52.5 39.9 63.9 Mean 26.9 32.3 42.8 53.8 63.9 72.8 76.4 74.5 67.6 56.3 43.5 31.8 53.6 Precip. 2.20 2.40 3.35 3.98 4.23 3.94 4.65 3.46 3.17 3.25 3.87 3.23 41.73 HDD 1182 918 690 345 134 8 0 7 57 294 646 1029 5310 CDD 0 0 0 7 100 241 354 300 135 22 0 0 1159 City:CHENOA State:IL Lat:40.44N Long:088.43W Elev: 710 ID:111475 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.6 19.8 30.1 39.9 50.9 60.3 63.8 61.6 53.8 42.8 32.0 20.8 40.9 Maximum 31.5 37.2 49.6 62.9 74.3 83.3 85.6 83.7 77.8 65.6 49.5 36.2 61.4 Mean 23.1 28.5 39.9 51.4 62.6 71.8 74.7 72.7 65.8 54.2 40.8 28.5 51.2 Precip. 1.52 1.43 3.02 3.31 3.88 4.10 3.33 3.22 2.91 2.69 2.73 2.47 34.61 HDD 1300 1023 781 414 165 15 2 16 77 349 728 1132 6002 CDD 0 0 0 6 90 219 303 253 101 14 0 0 986 City:CHESTER State:IL Lat:37.54N Long:089.50W Elev: 460 ID:111491 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.55 2.55 3.98 3.85 4.68 4.43 4.16 3.45 3.61 3.08 4.41 3.47 44.22 City:CHICAGO BOTANICAL GARDE State:IL Lat:42.08N Long:087.47W Elev: 630 ID:111497 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.7 18.1 27.7 36.8 46.7 55.9 62.5 61.7 53.5 41.8 32.1 20.2 39.2 Maximum 30.2 35.0 44.5 55.8 67.4 77.8 83.2 81.3 74.5 63.0 48.5 35.7 58.1 Mean 22.0 26.6 36.1 46.3 57.1 66.9 72.9 71.5 64.0 52.4 40.3 28.0 48.7 Precip. 1.89 1.56 2.50 3.70 3.59 3.86 3.50 4.84 3.24 2.70 3.22 2.20 36.80 HDD 1335 1077 897 562 283 67 7 18 96 398 741 1149 6630 CDD 0 0 0 0 36 123 250 221 66 6 0 0 702 City:CHICAGO OHARE INTL AP State:IL Lat:41.59N Long:087.55W Elev: 658 ID:111549 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.3 19.2 28.5 37.6 47.5 57.2 63.2 62.2 53.7 42.1 31.6 20.4 39.8 Maximum 29.6 34.7 46.1 58.0 69.9 79.2 83.5 81.2 73.9 62.1 47.1 34.4 58.3 Mean 22.0 27.0 37.3 47.8 58.7 68.2 73.3 71.7 63.8 52.1 39.3 27.4 49.1 Precip. 1.75 1.63 2.65 3.68 3.38 3.63 3.51 4.62 3.27 2.71 3.01 2.43 36.27 HDD 1333 1075 858 513 232 49 5 9 112 401 759 1147 6493 CDD 0 0 1 9 48 159 283 234 91 10 0 0 835 City:CHICAGO UNIVERSITY State:IL Lat:41.47N Long:087.36W Elev: 594 ID:111572 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.3 23.9 32.2 41.5 51.3 60.8 66.3 65.3 57.4 46.2 35.1 23.5 43.5 Maximum 32.2 37.4 47.4 58.9 70.2 80.3 84.4 82.7 76.2 64.3 49.4 37.1 60.0 Mean 25.3 30.7 39.8 50.2 60.8 70.6 75.4 74.0 66.8 55.3 42.3 30.3 51.8 Precip. 2.17 1.77 3.01 3.65 3.70 4.30 3.68 3.86 3.21 2.71 3.32 2.63 38.01 HDD 1233 962 782 448 197 27 1 9 55 314 683 1076 5787 CDD 0 0 0 4 65 193 322 287 110 13 0 0 994 City:CHICAGO MIDWAY AP 3 SW State:IL Lat:41.44N Long:087.47W Elev: 620 ID:111577 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 16.2 21.3 30.6 40.2 50.9 60.7 66.3 65.0 56.7 44.9 33.6 22.2 42.4 Maximum 30.7 36.1 47.4 59.2 71.3 80.8 84.7 82.3 75.1 63.2 48.0 35.6 59.5 Mean 23.5 28.7 39.0 49.7 61.1 70.8 75.5 73.7 65.9 54.1 40.8 28.9 51.0 Precip. 1.95 1.78 2.83 3.82 3.86 4.16 3.82 3.91 3.45 2.79 3.22 2.76 38.35 HDD 1288 1017 805 462 203 28 4 11 67 352 726 1120 6083 CDD 0 0 0 4 82 199 330 279 95 12 0 0 1001 City:CHILLICOTHE State:IL Lat:40.55N Long:089.30W Elev: 535 ID:111627 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.58 1.65 2.80 3.34 4.24 3.99 3.67 3.60 3.36 2.66 3.10 2.37 36.36 City:CLAY CITY 6 SSE State:IL Lat:38.36N Long:088.19W Elev: 460 ID:111700 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.47 2.57 4.01 4.19 4.23 3.92 3.89 3.66 3.22 3.12 4.19 3.22 42.69 City:CLINTON 1 SSW State:IL Lat:40.08N Long:088.58W Elev: 700 ID:111743 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.84 1.93 3.45 4.03 4.28 4.06 4.34 3.88 2.81 3.11 3.28 2.85 39.86 City:CONGERVILLE 2 NW State:IL Lat:40.37N Long:089.14W Elev: 635 ID:111836 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.66 1.48 2.59 3.26 4.35 3.09 3.84 3.63 2.87 2.61 2.77 2.63 34.78 City:DANVILLE State:IL Lat:40.08N Long:087.39W Elev: 558 ID:112140 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 17.3 21.9 31.7 41.0 50.7 60.0 64.3 62.6 54.7 43.3 33.8 23.0 42.0 Maximum 34.2 40.0 52.0 64.5 75.2 83.5 86.2 84.1 78.4 66.6 51.6 38.7 62.9 Mean 25.8 31.0 41.9 52.8 63.0 71.8 75.3 73.4 66.6 55.0 42.7 30.9 52.5 Precip. 2.05 1.99 3.17 3.86 4.47 4.70 4.39 3.94 3.03 3.04 3.53 2.79 40.96 HDD 1217 954 718 373 155 14 0 9 63 325 669 1058 5555 CDD 0 0 0 6 92 217 319 269 110 14 0 0 1027 City:DANVILLE SEWAGE PLANT State:IL Lat:40.06N Long:087.36W Elev: 527 ID:112145 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.90 1.96 2.98 3.64 4.42 4.24 4.36 3.73 2.84 2.99 3.39 2.87 39.32 City:DECATUR State:IL Lat:39.50N Long:088.57W Elev: 620 ID:112193 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 17.1 22.1 31.9 41.8 51.6 60.6 64.6 62.8 54.9 43.9 33.5 22.6 42.3 Maximum 34.5 40.5 52.6 65.3 76.1 84.5 87.8 85.8 79.9 67.8 52.0 39.2 63.8 Mean 25.8 31.3 42.3 53.6 63.9 72.6 76.2 74.3 67.4 55.9 42.8 30.9 53.1 Precip. 2.05 1.95 3.20 3.58 4.47 3.90 4.54 4.14 2.98 2.74 3.32 2.87 39.74 HDD 1215 943 706 350 139 10 0 11 54 305 668 1057 5458 CDD 0 0 0 7 104 237 348 299 125 22 0 0 1142 City:DE KALB State:IL Lat:41.56N Long:088.47W Elev: 873 ID:112223 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.3 15.5 26.2 36.8 48.1 58.4 62.6 60.5 51.4 39.9 28.2 16.9 37.9 Maximum 26.7 32.3 44.5 58.1 70.4 80.3 83.6 81.3 74.3 62.5 45.4 32.3 57.6 Mean 18.5 23.9 35.4 47.5 59.3 69.4 73.1 70.9 62.9 51.2 36.8 24.6 47.8 Precip. 1.54 1.40 2.46 3.52 4.21 4.49 4.22 4.48 3.51 2.60 2.82 2.13 37.38 HDD 1441 1152 919 528 230 29 5 29 116 432 845 1253 6979 CDD 0 0 0 2 52 159 256 212 51 4 0 0 736 City:DIX State:IL Lat:38.27N Long:088.56W Elev: 550 ID:112344 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.72 2.43 3.91 4.08 4.56 3.34 4.49 2.80 3.81 2.82 3.79 3.35 42.10 City:DIXON 1 NW State:IL Lat:41.51N Long:089.30W Elev: 700 ID:112348 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 9.5 15.0 26.7 37.4 48.5 58.0 62.3 60.0 51.2 39.4 28.4 16.5 37.7 Maximum 26.0 31.7 44.2 58.0 69.7 78.8 82.0 80.3 73.3 61.8 45.4 31.4 56.9 Mean 17.8 23.4 35.5 47.7 59.1 68.4 72.2 70.2 62.3 50.6 36.9 24.0 47.3 Precip. 1.60 1.43 2.55 3.61 4.32 4.88 3.45 4.47 3.31 2.71 2.82 2.13 37.28 HDD 1465 1166 916 522 240 37 11 38 134 452 844 1274 7099 CDD 0 0 0 3 58 138 234 197 52 6 0 0 688 City:DIXON SPRINGS AGR CENTE State:IL Lat:37.26N Long:088.40W Elev: 540 ID:112353 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 24.9 29.1 37.9 46.4 55.0 63.2 67.2 65.1 58.1 46.8 38.7 29.3 46.8 Maximum 43.1 49.8 60.5 70.7 78.9 86.7 90.3 89.6 83.5 73.1 58.9 47.3 69.4 Mean 34.0 39.5 49.2 58.6 67.0 75.0 78.8 77.4 70.8 60.0 48.8 38.3 58.1 Precip. 3.37 3.39 4.60 4.74 5.16 4.10 3.75 3.60 3.26 3.16 4.71 4.40 48.24 HDD 961 715 497 219 80 2 0 2 27 202 489 828 4022 CDD 0 0 6 25 141 301 426 384 199 46 3 0 1531 City:DU QUOIN 4 SE State:IL Lat:37.59N Long:089.12W Elev: 420 ID:112483 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.7 26.3 35.8 45.3 55.1 64.0 67.8 64.8 56.8 45.3 35.7 26.0 45.4 Maximum 39.8 46.3 57.2 67.9 77.3 85.6 89.6 87.8 80.9 70.5 56.2 44.1 66.9 Mean 30.8 36.3 46.5 56.6 66.2 74.8 78.7 76.3 68.9 57.9 46.0 35.1 56.2 Precip. 2.75 2.61 4.30 4.27 4.81 4.23 3.54 3.33 3.27 3.17 4.44 3.47 44.19 HDD 1062 804 573 270 92 4 0 2 44 253 573 929 4606 CDD 0 0 0 18 129 297 424 353 159 33 1 0 1414 City:DWIGHT State:IL Lat:41.05N Long:088.25W Elev: 628 ID:112500 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.4 17.2 27.5 38.0 49.4 58.5 62.6 59.6 51.2 39.7 30.0 18.1 38.7 Maximum 28.9 34.3 46.4 59.8 71.8 80.9 83.7 81.8 76.4 63.6 47.6 34.3 59.1 Mean 20.7 25.8 37.0 48.9 60.6 69.7 73.2 70.7 63.8 51.7 38.8 26.2 48.9 Precip. 1.37 1.27 2.90 3.14 4.04 4.21 3.54 3.28 2.46 2.79 2.97 2.50 34.47 HDD 1374 1099 869 486 207 27 5 25 103 421 787 1203 6606 CDD 0 0 0 3 71 169 257 202 66 6 0 0 774 City:EDWARDSVILLE 2 W State:IL Lat:38.49N Long:090.00W Elev: 500 ID:112679 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.19 2.29 3.52 3.79 4.09 4.36 3.85 3.66 3.16 2.79 3.69 2.82 40.21 City:EFFINGHAM State:IL Lat:39.07N Long:088.37W Elev: 625 ID:112687 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 17.8 21.6 31.8 41.9 52.0 61.5 65.7 63.3 54.8 43.2 33.7 23.1 42.5 Maximum 34.8 40.5 51.7 63.5 73.8 83.2 86.9 85.0 78.1 66.6 52.2 39.9 63.0 Mean 26.3 31.1 41.8 52.7 62.9 72.4 76.3 74.2 66.5 54.9 43.0 31.5 52.8 Precip. 2.38 2.51 3.61 4.09 4.46 4.26 4.51 2.92 3.04 2.95 4.05 3.27 42.05 HDD 1200 950 721 374 156 13 0 12 73 333 661 1040 5533 CDD 0 0 0 5 92 233 350 296 117 21 0 0 1114 City:ELGIN State:IL Lat:42.04N Long:088.17W Elev: 763 ID:112736 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.9 15.7 26.0 36.4 47.4 56.7 62.1 60.2 51.4 39.5 29.1 17.3 37.7 Maximum 27.6 32.9 44.3 57.5 69.4 79.4 83.0 81.0 74.0 62.0 46.4 33.1 57.6 Mean 19.3 24.3 35.2 47.0 58.4 68.1 72.6 70.6 62.7 50.8 37.8 25.2 47.7 Precip. 1.68 1.38 2.23 3.91 3.84 4.31 3.93 4.43 3.63 2.66 3.12 2.10 37.22 HDD 1419 1140 926 543 252 43 6 29 120 445 817 1235 6975 CDD 0 0 0 1 48 135 240 201 50 4 0 0 679 City:ELIZABETH State:IL Lat:42.19N Long:090.14W Elev: 675 ID:112745 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 4.2 10.1 21.9 32.3 42.9 53.3 57.1 54.9 45.9 34.4 24.0 11.6 32.7 Maximum 27.0 33.4 45.4 58.6 70.6 80.0 83.8 81.4 73.9 62.1 45.7 32.5 57.9 Mean 15.6 21.8 33.7 45.5 56.8 66.7 70.5 68.2 59.9 48.3 34.9 22.1 45.3 Precip. 1.12 1.24 2.58 3.38 3.57 5.07 2.90 4.45 3.63 2.51 2.71 1.77 34.93 HDD 1532 1212 972 587 287 51 12 52 179 521 905 1333 7643 CDD 0 0 0 0 30 99 182 149 26 2 0 0 488 City:FAIRBURY WATERWORKS State:IL Lat:40.44N Long:088.31W Elev: 690 ID:112923 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.36 1.37 2.78 2.85 3.84 3.72 3.37 3.31 2.59 2.59 3.03 2.20 33.01 City:FAIRFIELD RADIO WFIW State:IL Lat:38.23N Long:088.20W Elev: 430 ID:112931 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 19.7 24.0 33.4 42.6 52.2 61.0 65.1 62.8 55.0 43.5 33.9 24.3 43.1 Maximum 37.0 43.2 54.3 65.7 75.6 85.0 88.2 86.6 79.6 68.3 53.4 41.7 64.9 Mean 28.4 33.6 43.9 54.2 63.9 73.0 76.7 74.7 67.3 55.9 43.7 33.0 54.0 Precip. 2.78 2.70 4.62 4.80 4.73 4.20 3.83 3.35 2.90 3.31 4.33 3.45 45.00 HDD 1136 879 656 335 135 8 0 7 60 307 641 992 5156 CDD 0 0 0 9 100 247 362 307 128 24 0 0 1177 City:FARMER CITY State:IL Lat:40.13N Long:088.39W Elev: 730 ID:112993 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.3 19.2 29.9 39.9 51.2 60.2 63.8 61.9 53.6 42.0 31.1 20.9 40.7 Maximum 31.6 37.2 49.0 62.2 73.4 82.9 85.4 83.7 78.4 65.8 49.4 36.5 61.3 Mean 23.0 28.2 39.5 51.1 62.3 71.6 74.6 72.8 66.0 53.9 40.3 28.7 51.0 Precip. 1.61 1.66 2.95 3.44 3.95 3.97 3.82 3.99 2.85 2.56 2.85 2.44 36.09 HDD 1304 1030 793 424 174 18 1 16 73 358 742 1125 6058 CDD 0 0 0 5 90 214 298 258 102 15 0 0 982 City:FLORA 5 NW State:IL Lat:38.43N Long:088.35W Elev: 500 ID:113109 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.7 25.1 34.3 43.3 52.8 61.5 65.4 63.2 55.6 44.8 35.3 25.4 44.0 Maximum 38.1 44.2 55.4 66.8 76.4 85.0 88.6 86.9 80.3 69.3 54.7 42.5 65.7 Mean 29.4 34.7 44.9 55.1 64.6 73.3 77.0 75.1 68.0 57.1 45.0 34.0 54.9 Precip. 2.74 2.49 4.02 4.14 4.31 4.34 3.88 3.34 3.20 3.03 4.09 3.36 42.94 HDD 1103 850 626 309 121 8 0 5 48 272 600 964 4906 CDD 0 0 0 10 108 256 372 317 137 24 0 0 1224 City:FREEPORT WASTE WTR PLT State:IL Lat:42.18N Long:089.36W Elev: 750 ID:113262 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 9.0 14.1 25.3 36.3 47.5 57.3 61.7 59.1 50.1 38.5 27.8 15.5 36.9 Maximum 25.4 31.2 43.2 56.8 69.1 78.4 82.0 79.7 72.6 60.8 44.4 30.5 56.2 Mean 17.2 22.7 34.3 46.6 58.3 67.9 71.9 69.4 61.4 49.7 36.1 23.0 46.5 Precip. 1.33 1.33 2.14 3.23 3.96 4.46 3.57 4.11 3.67 2.58 2.69 1.72 34.79 HDD 1483 1187 953 554 252 40 7 41 152 478 867 1303 7317 CDD 0 0 0 1 44 126 219 177 42 2 0 0 611 City:FULTON L&D #13 State:IL Lat:41.54N Long:090.09W Elev: 592 ID:113290 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.9 16.1 26.6 37.7 49.3 59.5 63.9 61.6 53.5 41.8 30.5 18.0 39.1 Maximum 25.5 30.9 42.9 56.2 68.2 77.8 81.6 79.2 71.5 59.4 43.2 29.9 55.5 Mean 18.2 23.5 34.8 47.0 58.8 68.7 72.8 70.4 62.5 50.6 36.9 24.0 47.4 Precip. 1.33 1.26 2.36 3.36 3.87 4.33 3.32 4.51 3.10 2.66 2.59 1.77 34.46 HDD 1451 1163 938 542 236 33 2 28 131 450 845 1274 7093 CDD 0 0 0 1 42 143 243 195 55 4 0 0 683 City:GALENA State:IL Lat:42.25N Long:090.26W Elev: 800 ID:113312 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.28 1.47 2.46 3.48 3.99 4.73 3.75 4.20 3.81 2.31 2.76 1.85 36.09 City:GALESBURG State:IL Lat:40.57N Long:090.23W Elev: 771 ID:113320 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.5 19.2 29.4 40.2 51.4 60.8 65.3 63.2 54.7 42.9 30.8 19.2 40.9 Maximum 29.0 35.1 47.9 61.2 72.5 81.4 84.5 81.9 74.7 62.7 46.7 33.4 59.3 Mean 21.3 27.2 38.7 50.7 62.0 71.1 74.9 72.6 64.7 52.8 38.8 26.3 50.1 Precip. 1.41 1.55 2.84 3.81 3.97 4.18 4.37 4.07 3.50 2.52 2.72 2.28 37.22 HDD 1356 1059 817 434 176 17 5 17 92 386 788 1200 6347 CDD 0 0 0 5 81 200 312 252 83 8 0 0 941 City:GALVA State:IL Lat:41.11N Long:090.02W Elev: 810 ID:113335 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.5 18.4 28.7 39.1 50.6 59.5 64.0 61.5 53.2 41.5 30.0 18.0 39.8 Maximum 28.9 34.7 47.4 60.7 72.1 81.7 84.9 82.9 76.2 64.0 47.6 34.1 59.6 Mean 20.7 26.6 38.1 49.9 61.4 70.6 74.5 72.2 64.7 52.8 38.8 26.1 49.7 Precip. 1.52 1.54 2.79 3.93 3.94 4.39 3.98 4.32 3.57 2.73 2.91 2.27 37.89 HDD 1374 1077 836 457 190 22 4 18 92 388 785 1207 6450 CDD 0 0 0 4 78 189 297 241 84 8 0 0 901 City:GEBHARD WOODS STATE PAR State:IL Lat:41.21N Long:088.26W Elev: 505 ID:113369 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.6 17.7 28.8 38.9 49.5 58.7 63.1 60.7 52.5 40.6 30.8 19.1 39.4 Maximum 29.6 35.3 47.4 60.9 73.0 82.5 85.4 83.0 76.4 64.1 48.4 35.1 60.1 Mean 21.1 26.5 38.1 49.9 61.3 70.6 74.3 71.9 64.5 52.4 39.6 27.1 49.8 Precip. 1.75 1.59 2.74 3.54 3.95 4.16 3.72 3.40 2.95 2.54 3.09 2.36 35.79 HDD 1361 1078 833 459 194 21 4 24 96 402 762 1174 6408 CDD 0 0 0 5 79 190 292 235 79 9 0 0 889 City:GENESEO State:IL Lat:41.27N Long:090.09W Elev: 639 ID:113384 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.4 19.3 29.5 40.2 51.6 61.3 65.7 63.5 54.9 43.2 31.1 19.2 41.1 Maximum 28.7 34.4 47.2 61.1 73.1 82.4 85.7 83.2 75.7 63.3 46.9 33.4 59.6 Mean 21.1 26.9 38.4 50.7 62.4 71.9 75.7 73.4 65.3 53.3 39.0 26.3 50.4 Precip. 1.52 1.58 2.69 3.74 4.21 4.20 3.90 4.32 3.29 3.01 2.82 2.15 37.43 HDD 1363 1068 826 436 167 14 1 13 80 372 780 1201 6321 CDD 0 0 0 5 84 218 334 271 88 9 0 0 1009 City:GIBSON CITY State:IL Lat:40.28N Long:088.22W Elev: 750 ID:113413 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.8 18.7 28.9 38.4 49.7 59.4 62.7 60.2 51.7 40.1 30.9 19.8 39.5 Maximum 30.3 35.8 47.7 60.8 72.8 82.2 84.8 83.1 77.4 64.6 48.7 35.6 60.3 Mean 22.1 27.3 38.3 49.6 61.3 70.8 73.8 71.7 64.6 52.4 39.8 27.7 50.0 Precip. 1.64 1.59 2.99 3.30 4.07 4.04 3.74 3.91 2.83 2.66 3.01 2.54 36.32 HDD 1332 1057 828 465 191 21 3 21 89 399 756 1156 6318 CDD 0 0 0 3 75 194 273 229 75 8 0 0 857 City:GLADSTONE DAM 18 State:IL Lat:40.53N Long:091.01W Elev: 538 ID:113455 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.36 1.29 2.49 3.42 4.04 4.20 4.07 3.82 3.63 2.72 2.72 2.01 35.77 City:GOLDEN State:IL Lat:40.06N Long:091.01W Elev: 718 ID:113530 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.4 18.5 28.9 40.3 51.3 60.7 64.9 62.3 53.1 41.9 30.3 19.4 40.4 Maximum 31.4 37.6 49.8 62.3 73.0 82.4 86.4 84.3 77.5 66.0 49.7 36.4 61.4 Mean 22.4 28.1 39.4 51.3 62.2 71.6 75.7 73.3 65.3 54.0 40.0 27.9 50.9 Precip. 1.19 1.60 2.66 3.47 4.89 3.86 4.26 3.59 3.53 2.96 2.89 2.13 37.03 HDD 1321 1035 795 417 162 14 1 16 90 351 749 1150 6101 CDD 0 0 0 6 75 211 331 273 98 9 0 0 1003 City:GRAFTON State:IL Lat:38.58N Long:090.26W Elev: 510 ID:113572 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.03 1.88 3.49 4.07 4.05 3.41 3.64 3.28 3.12 2.57 3.79 2.91 38.24 City:GRAND TOWER 2 N State:IL Lat:37.40N Long:089.31W Elev: 367 ID:113595 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.89 2.89 4.42 4.45 4.81 4.19 3.72 3.71 3.06 3.11 4.60 3.84 45.69 City:GREENFIELD State:IL Lat:39.21N Long:090.12W Elev: 548 ID:113666 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.98 1.95 3.70 4.02 4.11 4.07 3.38 3.01 2.97 2.60 3.65 3.13 38.57 City:GREENUP State:IL Lat:39.14N Long:088.10W Elev: 540 ID:113683 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.27 2.30 3.71 3.84 4.30 3.97 4.22 3.54 3.13 2.97 4.08 2.83 41.16 City:GREENVILLE 2 NE State:IL Lat:38.56N Long:089.24W Elev: 580 ID:113693 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.14 2.29 3.39 3.74 4.41 4.12 3.93 3.06 3.28 2.95 3.96 2.87 40.14 City:GRIGGSVILLE State:IL Lat:39.44N Long:090.43W Elev: 628 ID:113717 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 15.5 20.0 30.4 42.3 52.5 62.0 65.7 63.0 54.3 43.2 31.2 20.8 41.7 Maximum 33.3 39.5 51.1 63.5 73.5 82.0 86.3 84.7 77.7 66.5 51.0 38.2 62.3 Mean 24.4 29.8 40.8 52.9 63.0 72.0 76.0 73.9 66.0 54.9 41.1 29.5 52.0 Precip. 1.74 1.76 3.18 3.91 4.11 3.30 4.07 3.03 3.22 2.85 3.40 2.60 37.17 HDD 1259 987 751 372 145 14 1 15 70 327 718 1101 5760 CDD 0 0 0 9 83 223 341 290 100 12 0 0 1058 City:GURNEE PUBLIC WORKS State:IL Lat:42.22N Long:087.57W Elev: 680 ID:113738 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.92 1.74 2.23 3.79 3.29 3.71 3.13 3.62 3.35 2.63 3.18 2.02 34.61 City:HARRISBURG State:IL Lat:37.44N Long:088.31W Elev: 365 ID:113879 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.7 25.2 34.8 44.7 54.2 63.3 67.6 65.1 56.6 44.4 35.5 26.3 45.0 Maximum 40.0 45.9 56.6 67.5 76.9 85.3 89.3 88.0 81.1 70.4 56.4 44.7 66.8 Mean 30.9 35.6 45.7 56.1 65.6 74.3 78.5 76.6 68.9 57.4 46.0 35.5 55.9 Precip. 3.20 3.07 4.44 4.64 4.98 4.47 3.94 3.23 3.04 3.04 4.20 3.90 46.15 HDD 1060 825 599 285 99 5 0 3 45 258 572 915 4666 CDD 0 0 1 18 117 284 416 360 160 23 0 0 1379 City:HARVARD State:IL Lat:42.25N Long:088.38W Elev: 910 ID:113902 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.45 1.35 1.88 3.46 4.12 4.30 2.76 4.28 3.25 2.51 2.65 1.87 33.88 City:HAVANA 4 NNE State:IL Lat:40.21N Long:090.01W Elev: 460 ID:113940 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.0 19.2 29.7 40.3 50.8 60.4 63.9 61.2 52.3 40.5 30.2 19.4 40.2 Maximum 31.9 38.0 50.2 63.0 74.0 84.0 88.4 86.4 79.9 67.6 50.9 37.2 62.6 Mean 23.0 28.6 40.0 51.7 62.4 72.2 76.2 73.8 66.1 54.1 40.6 28.3 51.4 Precip. 1.85 1.94 3.02 3.45 4.43 3.81 3.87 3.45 3.21 2.86 3.26 2.63 37.78 HDD 1303 1020 776 407 164 13 0 14 63 348 733 1139 5980 CDD 0 0 0 7 84 229 346 287 96 10 0 0 1059 City:HENNEPIN POWER PLANT State:IL Lat:41.18N Long:089.19W Elev: 460 ID:114013 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.2 18.5 29.5 39.2 49.8 59.4 63.7 61.8 53.2 41.3 30.8 19.4 40.0 Maximum 30.3 36.0 48.3 61.6 73.4 82.7 86.2 84.0 77.4 65.1 49.0 35.6 60.8 Mean 21.8 27.3 38.9 50.4 61.6 71.1 75.0 72.9 65.3 53.2 39.9 27.5 50.4 Precip. 1.14 1.15 2.15 3.24 3.62 4.20 3.78 4.32 3.62 2.71 2.48 2.04 34.45 HDD 1340 1058 808 442 180 14 4 18 83 374 753 1163 6237 CDD 0 0 0 4 75 196 312 262 91 8 0 0 948 City:HILLSBORO State:IL Lat:39.09N Long:089.29W Elev: 630 ID:114108 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.1 25.9 35.3 45.2 55.0 64.2 68.0 65.6 57.6 46.7 37.0 26.1 45.6 Maximum 37.4 44.1 55.7 68.1 78.0 87.0 90.7 89.0 82.2 70.7 54.8 41.7 66.6 Mean 29.3 35.0 45.5 56.7 66.5 75.6 79.4 77.3 69.9 58.7 45.9 33.9 56.1 Precip. 2.18 2.00 3.56 4.19 4.31 4.07 3.48 3.53 3.16 2.91 3.81 2.98 40.18 HDD 1107 840 605 271 99 4 0 2 36 225 574 964 4727 CDD 0 0 0 20 146 322 445 383 182 29 0 0 1527 City:HOOPESTON 1 NE State:IL Lat:40.28N Long:087.39W Elev: 710 ID:114198 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 17.5 22.3 32.2 41.4 52.2 61.4 64.8 62.7 55.2 44.5 34.2 23.1 42.6 Maximum 32.1 37.8 50.1 62.6 74.0 82.7 85.3 83.2 77.5 65.1 50.0 36.9 61.4 Mean 24.8 30.1 41.2 52.0 63.1 72.1 75.1 73.0 66.4 54.8 42.1 30.0 52.1 Precip. 1.57 1.62 2.92 3.49 4.18 4.05 4.09 3.78 2.72 3.04 2.97 2.47 36.90 HDD 1246 978 740 397 162 14 2 13 67 330 687 1086 5722 CDD 0 0 0 6 104 226 314 259 107 14 0 0 1030 City:HUTSONVILLE POWER PLANT State:IL Lat:39.08N Long:087.39W Elev: 455 ID:114317 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.23 2.46 3.75 4.02 4.49 4.03 4.62 3.32 3.35 2.90 3.89 3.03 42.09 City:ILLINOIS CITY DAM 16 State:IL Lat:41.26N Long:091.01W Elev: 550 ID:114355 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.25 1.28 2.50 3.14 4.08 4.05 4.03 4.18 3.64 2.66 2.44 1.76 35.01 City:JACKSONVILLE 2 E State:IL Lat:39.44N Long:090.13W Elev: 610 ID:114442 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 15.0 19.2 28.6 38.7 49.1 58.5 62.7 60.1 51.8 40.7 30.7 20.3 39.6 Maximum 34.4 40.3 52.1 64.2 74.4 83.3 87.0 85.0 79.3 67.6 52.4 39.4 63.3 Mean 24.7 29.8 40.4 51.5 61.8 70.9 74.9 72.6 65.6 54.2 41.6 29.9 51.5 Precip. 1.35 1.69 3.18 3.77 4.86 4.36 3.85 3.35 3.46 2.61 3.45 2.54 38.47 HDD 1251 988 765 413 181 19 1 18 78 345 704 1090 5853 CDD 0 0 0 5 80 196 306 253 95 10 0 0 945 City:JERSEYVILLE 2 SW State:IL Lat:39.06N Long:090.21W Elev: 630 ID:114489 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 17.3 22.2 32.2 42.1 52.1 61.4 65.7 63.1 54.6 43.3 33.6 22.8 42.5 Maximum 35.3 41.3 52.5 64.2 74.3 83.1 87.5 85.9 78.8 67.6 52.5 40.0 63.6 Mean 26.3 31.8 42.4 53.2 63.2 72.3 76.6 74.5 66.7 55.5 43.1 31.4 53.1 Precip. 1.92 2.01 3.51 4.14 3.95 3.68 3.51 2.91 3.23 2.86 3.77 2.82 38.31 HDD 1200 932 702 364 150 12 0 9 71 310 658 1041 5449 CDD 0 0 0 8 93 228 360 302 121 13 0 0 1125 City:JOLIET BRANDON RD DAM State:IL Lat:41.30N Long:088.06W Elev: 543 ID:114530 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.5 18.6 27.6 36.9 47.5 58.2 62.8 60.7 52.9 41.2 31.4 19.5 39.2 Maximum 29.9 35.2 46.8 59.5 71.6 81.3 84.6 82.4 76.0 64.1 48.3 35.2 59.6 Mean 21.7 26.9 37.2 48.2 59.6 69.8 73.7 71.6 64.5 52.7 39.9 27.4 49.4 Precip. 1.58 1.64 2.46 3.75 3.87 4.22 4.34 3.82 3.14 2.70 3.00 2.44 36.96 HDD 1343 1067 863 505 230 32 4 20 86 391 755 1168 6464 CDD 0 0 0 2 61 174 272 223 70 7 0 0 809 City:KANKAKEE METRO WASTWTR State:IL Lat:41.08N Long:087.53W Elev: 640 ID:114603 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.2 17.0 27.5 37.8 48.7 58.8 63.1 60.7 52.0 39.9 30.0 19.4 38.9 Maximum 31.1 36.8 48.3 60.7 72.8 82.6 85.7 83.5 77.6 65.1 49.5 36.4 60.8 Mean 21.7 26.9 37.9 49.3 60.8 70.7 74.4 72.1 64.8 52.5 39.8 27.9 49.9 Precip. 1.77 1.62 2.78 3.80 4.54 4.44 4.38 3.11 3.47 2.70 3.36 2.61 38.58 HDD 1343 1067 840 474 205 22 4 18 85 394 757 1150 6359 CDD 0 0 0 2 74 194 295 239 78 6 0 0 888 City:KASKASKIA RIV NAV LOCK State:IL Lat:37.59N Long:089.57W Elev: 380 ID:114629 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.8 25.5 34.9 44.9 54.5 63.9 68.4 65.9 57.5 46.0 36.2 26.6 45.5 Maximum 39.1 45.5 56.1 67.6 77.8 86.7 91.2 89.4 81.8 70.8 56.0 43.7 67.1 Mean 30.5 35.5 45.5 56.3 66.2 75.3 79.8 77.7 69.7 58.4 46.1 35.2 56.4 Precip. 1.85 1.99 3.51 3.42 4.30 3.85 3.76 3.39 3.19 3.08 4.16 3.16 39.66 HDD 1071 825 605 278 101 4 0 2 36 240 568 925 4655 CDD 0 0 0 16 137 314 459 394 175 36 1 0 1532 City:KEITHSBURG State:IL Lat:41.06N Long:090.56W Elev: 550 ID:114655 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.38 1.49 2.84 3.39 4.19 4.02 4.03 3.93 3.38 2.59 2.64 2.14 36.02 City:KEWANEE 1 E State:IL Lat:41.15N Long:089.54W Elev: 780 ID:114710 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.1 15.7 26.2 36.9 48.5 58.6 62.4 60.1 50.7 39.1 28.5 16.9 37.8 Maximum 28.1 33.8 46.2 59.5 70.9 80.1 83.5 81.6 74.9 62.8 46.9 33.3 58.5 Mean 19.1 24.8 36.2 48.2 59.7 69.4 73.0 70.9 62.8 51.0 37.7 25.1 48.2 Precip. 1.55 1.41 2.49 3.48 3.53 4.46 3.98 4.14 3.04 2.57 2.74 2.37 35.76 HDD 1423 1127 894 506 218 27 4 29 123 439 821 1238 6849 CDD 0 0 0 2 55 158 251 210 56 4 0 0 736 City:KINCAID State:IL Lat:39.35N Long:089.27W Elev: 600 ID:114739 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.83 1.73 3.10 3.50 4.21 4.23 3.44 3.07 2.80 2.70 3.35 2.53 36.49 City:KINMUNDY State:IL Lat:38.46N Long:088.51W Elev: 620 ID:114756 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.43 2.09 3.97 3.84 3.94 4.17 4.19 3.53 3.36 2.93 4.09 2.69 41.23 City:LACON 1 N State:IL Lat:41.02N Long:089.24W Elev: 460 ID:114805 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 15.2 20.5 30.5 40.6 50.9 60.1 64.3 62.4 54.3 43.1 32.3 20.9 41.3 Maximum 32.0 38.0 50.6 64.1 75.2 83.9 87.2 85.4 78.6 66.5 50.3 36.8 62.4 Mean 23.6 29.3 40.6 52.4 63.1 72.0 75.8 73.9 66.5 54.8 41.3 28.9 51.9 Precip. 1.55 1.61 3.08 3.84 4.20 4.14 4.12 3.53 3.49 2.99 3.03 2.32 37.90 HDD 1284 1000 758 388 152 11 2 12 65 328 711 1120 5831 CDD 0 0 0 9 90 221 334 287 107 12 0 0 1060 City:LA HARPE State:IL Lat:40.35N Long:090.58W Elev: 700 ID:114823 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.3 18.2 28.7 39.4 50.5 60.0 64.3 62.3 53.6 42.3 30.5 19.2 40.2 Maximum 31.7 37.6 50.0 62.4 73.3 82.7 87.0 84.7 77.3 65.9 49.6 36.5 61.6 Mean 22.5 27.9 39.4 50.9 61.9 71.4 75.7 73.5 65.5 54.1 40.1 27.9 50.9 Precip. 1.47 1.68 2.86 3.82 4.58 4.38 4.54 3.54 3.99 2.85 3.15 2.28 39.14 HDD 1318 1039 796 429 173 17 1 14 86 350 749 1152 6124 CDD 0 0 0 6 77 207 331 277 100 11 0 0 1009 City:LAKE VILLA 2 NE State:IL Lat:42.26N Long:088.04W Elev: 840 ID:114837 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.1 17.2 26.8 36.4 46.9 56.2 62.2 61.2 52.7 41.9 29.9 18.3 38.5 Maximum 27.7 32.6 43.6 56.4 68.7 78.4 82.2 79.8 72.1 60.0 45.7 32.6 56.7 Mean 19.9 24.9 35.2 46.4 57.8 67.3 72.2 70.5 62.4 51.0 37.8 25.5 47.6 Precip. 2.19 1.89 2.67 4.06 3.30 4.11 3.11 3.64 3.30 2.26 2.78 2.19 35.50 HDD 1398 1124 924 559 264 49 10 23 123 439 816 1226 6955 CDD 0 0 0 1 41 118 233 193 44 4 0 0 634 City:LAWRENCEVILLE State:IL Lat:38.44N Long:087.42W Elev: 442 ID:114957 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.73 2.68 4.18 4.24 5.19 4.27 4.45 3.66 3.12 3.20 4.20 3.42 45.34 City:LINCOLN State:IL Lat:40.09N Long:089.20W Elev: 583 ID:115079 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.7 19.3 28.7 38.6 49.8 60.7 63.9 61.5 52.6 40.9 31.2 20.6 40.2 Maximum 32.5 38.3 50.4 63.1 74.0 83.0 86.0 84.0 78.0 66.5 50.7 37.9 62.0 Mean 23.6 28.8 39.6 50.9 61.9 71.9 75.0 72.8 65.3 53.7 41.0 29.3 51.2 Precip. 1.70 1.55 3.11 3.63 4.42 3.97 4.35 4.00 3.13 2.81 3.00 2.63 38.30 HDD 1283 1014 789 429 173 15 1 15 77 361 722 1108 5987 CDD 0 0 0 4 77 220 309 254 86 12 0 0 962 City:MACKINAW 1 N State:IL Lat:40.33N Long:089.20W Elev: 710 ID:115272 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.93 1.78 2.95 3.62 4.23 4.22 4.19 3.32 3.43 2.81 3.24 2.85 38.57 City:MACOMB State:IL Lat:40.29N Long:090.40W Elev: 610 ID:115280 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.26 1.52 2.85 3.59 4.29 4.00 4.12 3.36 3.54 2.83 2.66 2.21 36.23 City:MARENGO State:IL Lat:42.15N Long:088.36W Elev: 810 ID:115326 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.6 15.5 26.4 36.7 47.2 57.1 62.0 59.9 50.7 39.1 28.6 16.9 37.6 Maximum 27.9 33.3 44.9 58.6 71.2 81.2 84.5 82.1 75.0 62.9 46.6 33.0 58.4 Mean 19.3 24.4 35.7 47.7 59.2 69.2 73.3 71.0 62.9 51.0 37.6 25.0 48.0 Precip. 1.48 1.29 2.42 3.71 4.10 4.56 3.86 4.47 3.32 2.61 2.69 1.97 36.48 HDD 1419 1137 909 521 231 31 4 25 125 439 823 1242 6906 CDD 0 0 0 2 51 156 260 211 60 5 0 0 745 City:MARION 4 NNE State:IL Lat:37.46N Long:088.54W Elev: 477 ID:115342 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 19.0 22.9 32.5 42.0 51.6 60.8 65.4 62.9 54.8 42.5 33.7 23.6 42.6 Maximum 38.1 44.1 54.7 65.7 74.8 83.1 87.2 86.0 79.2 68.2 54.9 42.8 64.9 Mean 28.6 33.5 43.6 53.9 63.2 72.0 76.3 74.5 67.0 55.4 44.3 33.2 53.8 Precip. 3.26 3.17 4.45 4.54 4.93 4.32 3.89 3.72 3.13 3.06 4.77 3.72 46.96 HDD 1130 882 663 344 143 10 0 9 64 318 620 985 5168 CDD 0 0 0 9 88 219 350 301 125 20 0 0 1112 City:MARSEILLES LOCK State:IL Lat:41.20N Long:088.45W Elev: 490 ID:115372 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.58 1.48 2.66 3.59 4.25 4.23 3.79 3.63 3.61 2.68 3.12 2.39 37.01 City:MASON CITY 1 W State:IL Lat:40.12N Long:089.42W Elev: 585 ID:115413 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 15.7 20.6 30.5 40.5 51.3 60.4 64.1 62.2 54.5 43.5 32.4 21.3 41.4 Maximum 33.1 39.2 52.0 65.1 75.6 84.3 87.4 85.3 79.5 67.3 51.0 37.6 63.1 Mean 24.4 29.9 41.3 52.8 63.5 72.4 75.8 73.8 67.0 55.4 41.7 29.5 52.3 Precip. 1.56 1.53 2.77 3.34 4.20 3.70 4.04 3.47 3.00 2.73 2.95 2.42 35.71 HDD 1259 983 736 375 150 11 0 10 59 312 698 1102 5695 CDD 0 0 0 8 101 232 333 281 118 15 0 0 1088 City:MATTOON State:IL Lat:39.28N Long:088.21W Elev: 718 ID:115430 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 16.6 21.1 31.7 42.2 53.2 62.7 66.3 64.2 55.9 44.7 33.2 22.5 42.9 Maximum 33.0 38.6 50.2 62.4 73.3 82.8 86.0 84.2 78.2 66.0 50.6 38.0 61.9 Mean 24.8 29.9 41.0 52.3 63.3 72.8 76.2 74.2 67.1 55.4 41.9 30.3 52.4 Precip. 2.03 2.08 3.06 3.84 3.95 4.21 4.16 3.25 3.06 3.02 3.71 2.84 39.21 HDD 1245 985 745 385 156 12 0 9 61 318 694 1077 5687 CDD 0 0 0 5 103 244 345 295 123 19 0 0 1134 City:MCHENRY WG STRATTON L&D State:IL Lat:42.19N Long:088.15W Elev: 742 ID:115493 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.48 1.22 2.12 3.43 3.67 4.09 3.69 4.00 3.22 2.36 2.61 1.82 33.71 City:MCLEANSBORO State:IL Lat:38.05N Long:088.33W Elev: 446 ID:115515 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.3 24.1 33.7 43.4 53.0 62.0 65.8 63.0 55.1 43.4 34.8 24.7 43.6 Maximum 38.9 44.9 55.1 66.0 75.9 85.1 89.2 88.0 81.4 69.9 55.8 43.7 66.2 Mean 29.6 34.5 44.4 54.7 64.5 73.6 77.5 75.5 68.3 56.7 45.3 34.2 54.9 Precip. 3.15 2.76 4.46 4.59 4.67 3.86 3.47 2.97 2.89 2.95 4.54 3.59 43.90 HDD 1098 854 639 321 124 6 0 5 52 287 592 954 4932 CDD 0 0 0 11 107 262 388 330 150 27 0 0 1275 City:MEDORA State:IL Lat:39.10N Long:090.08W Elev: 620 ID:115539 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.97 2.08 3.36 3.94 4.27 3.24 3.56 3.22 3.04 2.78 3.57 2.83 37.86 City:MINONK State:IL Lat:40.55N Long:089.02W Elev: 750 ID:115712 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.6 18.2 28.6 38.3 48.8 58.4 62.2 59.7 51.8 40.5 30.0 18.8 39.0 Maximum 30.1 35.9 48.1 61.6 73.4 83.2 86.3 84.2 78.2 65.6 48.9 35.4 60.9 Mean 21.4 27.1 38.4 50.0 61.1 70.8 74.3 72.0 65.0 53.1 39.5 27.1 50.0 Precip. 1.75 1.83 3.23 3.53 4.20 3.71 3.76 3.41 3.34 2.81 3.28 2.39 37.24 HDD 1353 1063 826 457 202 18 6 21 89 381 767 1174 6357 CDD 0 0 0 5 80 192 293 237 89 10 0 0 906 City:MOLINE QUAD CITY AP State:IL Lat:41.28N Long:090.31W Elev: 592 ID:115751 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.3 18.2 29.0 39.3 50.0 59.7 64.5 62.4 53.4 41.6 30.1 18.3 39.9 Maximum 29.8 35.6 48.3 61.7 73.3 82.7 86.1 83.9 76.5 64.4 48.0 34.5 60.4 Mean 21.1 26.9 38.7 50.5 61.7 71.2 75.3 73.2 65.0 53.0 39.1 26.4 50.2 Precip. 1.58 1.51 2.92 3.82 4.25 4.63 4.03 4.41 3.16 2.80 2.73 2.20 38.04 HDD 1374 1090 831 450 172 19 3 8 108 394 782 1191 6422 CDD 0 0 1 12 62 205 322 254 101 12 0 0 969 City:MOMENCE 5 ENE State:IL Lat:41.11N Long:087.34W Elev: 630 ID:115758 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.46 1.36 2.70 3.53 4.00 4.41 3.63 3.78 3.51 2.58 2.84 2.33 36.13 City:MONMOUTH State:IL Lat:40.55N Long:090.38W Elev: 745 ID:115768 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.8 20.4 30.3 40.5 50.8 60.1 64.1 61.8 53.9 43.3 31.5 20.2 41.0 Maximum 30.6 36.9 49.4 62.7 72.9 81.3 84.8 83.3 77.4 65.4 49.1 35.1 60.7 Mean 22.7 28.7 39.9 51.6 61.9 70.7 74.5 72.6 65.7 54.4 40.3 27.7 50.9 Precip. 1.62 1.72 2.85 3.76 4.27 4.26 4.33 4.02 3.45 2.97 2.74 2.32 38.31 HDD 1312 1018 780 407 170 19 3 16 80 341 740 1159 6045 CDD 0 0 0 6 73 190 297 249 98 10 0 0 923 City:MONTICELLO NO 2 State:IL Lat:40.02N Long:088.35W Elev: 620 ID:115792 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.04 1.93 3.12 3.78 4.41 3.97 4.57 4.15 2.79 2.72 3.34 2.86 39.68 City:MORRISON State:IL Lat:41.48N Long:089.58W Elev: 603 ID:115833 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 9.9 15.3 26.9 37.2 48.5 57.7 61.8 59.4 50.5 39.0 28.4 16.4 37.6 Maximum 28.8 34.3 46.6 60.1 72.1 81.6 85.0 82.9 75.8 64.0 47.4 33.8 59.4 Mean 19.4 24.8 36.8 48.7 60.3 69.7 73.4 71.2 63.2 51.5 37.9 25.1 48.5 Precip. 1.52 1.51 2.79 3.72 4.41 4.58 3.70 4.69 2.87 2.82 2.90 2.14 37.65 HDD 1417 1126 877 493 205 23 4 25 113 424 814 1238 6759 CDD 0 0 0 2 60 162 264 215 57 5 0 0 765 City:MORRISONVILLE State:IL Lat:39.25N Long:089.28W Elev: 630 ID:115841 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 16.3 21.0 31.1 41.2 51.9 61.3 64.8 62.5 54.4 42.4 32.5 21.7 41.8 Maximum 32.3 38.7 50.1 63.0 73.7 82.8 86.0 84.5 79.2 66.9 51.1 37.9 62.2 Mean 24.3 29.9 40.6 52.1 62.8 72.1 75.4 73.5 66.8 54.7 41.8 29.8 52.0 Precip. 1.78 1.78 3.01 3.48 3.77 3.66 3.68 2.76 2.83 2.34 3.57 2.43 35.09 HDD 1263 984 757 393 164 12 0 10 58 336 697 1092 5766 CDD 0 0 0 6 96 224 324 273 112 14 0 0 1049 City:MOUNT CARMEL State:IL Lat:38.25N Long:087.45W Elev: 430 ID:115888 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.0 24.8 34.5 43.9 54.1 63.2 67.1 64.5 56.5 44.7 35.7 25.5 44.6 Maximum 38.0 44.1 54.5 65.8 75.9 85.1 88.6 87.0 80.7 69.6 55.3 43.0 65.6 Mean 29.5 34.5 44.5 54.9 65.0 74.2 77.9 75.8 68.6 57.2 45.5 34.3 55.2 Precip. 2.90 2.73 4.15 4.24 5.12 3.70 4.24 3.61 2.80 3.03 4.19 3.05 43.76 HDD 1100 856 636 315 118 5 0 3 43 272 585 954 4887 CDD 0 0 0 10 119 279 398 336 150 28 0 0 1320 City:MOUNT CARROLL State:IL Lat:42.06N Long:089.59W Elev: 640 ID:115901 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 7.5 12.6 24.5 34.6 45.7 54.4 58.8 56.4 47.3 35.8 26.1 13.8 34.8 Maximum 28.9 34.6 46.7 60.2 72.1 81.6 85.1 83.1 75.8 63.8 47.3 33.9 59.4 Mean 18.2 23.6 35.6 47.4 58.9 68.0 72.0 69.8 61.6 49.8 36.7 23.9 47.1 Precip. 1.43 1.52 2.63 3.67 4.34 4.77 3.83 4.54 3.48 2.73 2.84 2.02 37.80 HDD 1452 1159 911 530 230 38 9 40 152 479 849 1275 7124 CDD 0 0 0 1 42 128 224 187 48 8 0 0 638 City:MOUNT OLIVE 1 E State:IL Lat:39.04N Long:089.42W Elev: 690 ID:115917 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.07 2.16 3.54 3.88 4.11 3.53 3.49 3.42 3.18 2.69 3.75 2.91 38.73 City:MOUNT PULASKI State:IL Lat:40.00N Long:089.17W Elev: 635 ID:115927 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.50 1.68 2.94 3.59 4.08 3.83 4.31 4.06 2.84 2.94 2.76 2.50 37.03 City:MOUNT STERLING State:IL Lat:39.59N Long:090.45W Elev: 720 ID:115935 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.58 1.59 2.79 3.64 5.03 3.85 3.90 3.24 3.42 3.18 3.07 2.29 37.58 City:MT VERNON 3 NE State:IL Lat:38.21N Long:088.51W Elev: 490 ID:115943 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.8 22.9 32.9 43.2 52.6 62.0 66.4 63.9 55.5 43.2 34.1 23.8 43.3 Maximum 37.0 42.8 53.7 64.8 74.5 83.7 87.8 86.3 79.2 68.2 53.9 41.8 64.5 Mean 27.9 32.9 43.3 54.0 63.6 72.9 77.1 75.1 67.4 55.7 44.0 32.8 53.9 Precip. 2.45 2.69 3.98 4.44 4.58 3.61 3.57 3.27 3.11 2.92 4.37 3.20 42.19 HDD 1149 899 673 344 137 9 0 5 57 310 630 998 5211 CDD 0 0 0 12 92 245 376 317 127 22 0 0 1191 City:MOWEAQUA State:IL Lat:39.38N Long:089.01W Elev: 615 ID:115950 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 15.4 19.6 30.1 40.6 51.3 60.7 64.1 61.7 53.2 42.1 31.6 21.0 41.0 Maximum 34.1 40.2 52.1 64.1 75.0 84.1 87.8 86.3 80.2 68.4 52.6 39.5 63.7 Mean 24.8 29.9 41.1 52.4 63.2 72.4 76.0 74.0 66.7 55.3 42.1 30.3 52.4 Precip. 1.67 1.92 2.88 3.72 4.29 4.21 4.00 3.34 2.97 2.83 3.44 2.31 37.58 HDD 1248 982 741 384 146 14 0 12 70 323 688 1077 5685 CDD 0 0 0 4 89 236 338 290 121 21 0 0 1099 City:NASHVILLE 4 NE State:IL Lat:38.22N Long:089.18W Elev: 515 ID:116011 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 21.8 26.4 35.4 45.1 55.0 63.8 67.7 65.3 57.9 47.2 36.6 26.5 45.7 Maximum 37.8 44.1 55.6 66.6 76.1 84.9 88.3 86.6 79.9 69.0 54.3 42.1 65.4 Mean 29.8 35.3 45.5 55.9 65.6 74.4 78.0 76.0 68.9 58.1 45.5 34.3 55.6 Precip. 2.18 2.34 3.48 3.86 4.10 3.68 3.66 2.73 3.22 3.00 3.78 2.99 39.02 HDD 1091 834 605 289 112 5 0 4 40 251 587 951 4769 CDD 0 0 0 16 129 286 403 343 157 36 0 0 1370 City:NEW ATHENS State:IL Lat:38.19N Long:089.52W Elev: 400 ID:116072 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.25 2.48 4.12 4.05 3.53 4.81 5.03 2.90 2.75 2.61 3.94 3.55 42.02 City:NEW BOSTON DAM 17 State:IL Lat:41.12N Long:091.03W Elev: 548 ID:116080 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.37 1.39 2.42 3.24 4.24 3.74 3.88 3.99 3.49 2.50 2.51 1.73 34.50 City:NEWMAN 1 SE State:IL Lat:39.47N Long:087.59W Elev: 645 ID:116134 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.81 1.64 2.95 4.25 3.85 3.66 3.27 4.57 3.07 3.45 3.52 2.40 38.44 City:NEWTON 6 SSE State:IL Lat:38.55N Long:088.07W Elev: 510 ID:116159 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.5 22.4 32.5 41.9 52.2 61.9 66.0 63.1 55.0 43.3 34.1 23.8 42.9 Maximum 34.3 40.2 51.3 62.7 73.2 82.1 85.4 83.5 77.7 66.3 51.9 39.3 62.3 Mean 26.4 31.3 41.9 52.3 62.7 72.0 75.7 73.3 66.4 54.8 43.0 31.6 52.6 Precip. 2.38 2.38 3.85 3.90 4.39 3.74 4.37 3.43 3.17 2.77 3.99 2.90 41.27 HDD 1196 943 716 386 160 13 0 10 68 335 659 1038 5524 CDD 0 0 0 5 88 224 332 268 108 18 0 0 1043 City:NORMAL State:IL Lat:40.31N Long:089.00W Elev: 785 ID:116200 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.7 18.2 28.8 39.7 50.8 60.9 64.7 62.8 54.0 42.3 30.8 19.9 40.6 Maximum 31.0 36.4 48.4 61.2 72.8 82.6 85.6 83.6 77.2 65.1 48.8 36.3 60.8 Mean 22.4 27.3 38.6 50.5 61.8 71.8 75.2 73.2 65.6 53.7 39.8 28.1 50.7 Precip. 1.73 1.71 2.87 3.83 4.52 3.88 3.95 3.83 2.95 2.71 3.06 2.41 37.45 HDD 1322 1056 817 443 182 15 1 15 76 362 757 1144 6190 CDD 0 0 0 6 82 218 316 269 95 12 0 0 998 City:OLIVE BRANCH State:IL Lat:37.10N Long:089.21W Elev: 340 ID:116383 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 24.2 28.5 37.2 45.5 55.2 62.9 67.5 65.8 58.3 46.6 37.9 28.1 46.5 Maximum 42.5 48.2 59.2 69.5 78.1 85.6 89.2 87.8 81.6 71.7 57.7 46.1 68.1 Mean 33.4 38.4 48.2 57.5 66.7 74.3 78.4 76.8 70.0 59.2 47.8 37.1 57.3 Precip. 3.27 3.82 4.16 5.02 3.98 4.48 3.36 2.67 2.96 3.84 4.54 4.18 46.28 HDD 982 747 522 247 75 3 0 1 29 217 518 864 4205 CDD 0 0 1 22 126 281 413 366 178 37 1 0 1425 City:OLNEY 2 S State:IL Lat:38.42N Long:088.05W Elev: 480 ID:116446 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.7 22.5 31.8 41.9 51.8 62.0 65.5 63.2 55.0 43.6 33.8 24.3 42.8 Maximum 36.4 42.2 53.5 64.9 74.9 84.2 87.5 85.9 79.8 68.6 53.7 41.4 64.4 Mean 27.6 32.4 42.7 53.4 63.4 73.1 76.5 74.6 67.4 56.1 43.8 32.9 53.7 Precip. 2.84 2.73 4.35 4.38 4.76 4.07 4.13 3.55 3.09 3.34 4.39 3.65 45.28 HDD 1161 915 693 353 141 7 0 4 53 303 638 996 5264 CDD 0 0 0 5 90 250 356 300 125 26 0 0 1152 City:OREGON 2 E State:IL Lat:42.01N Long:089.18W Elev: 750 ID:116490 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.71 1.01 2.18 3.42 3.89 4.37 3.09 3.83 2.94 2.07 2.49 2.09 33.09 City:OTTAWA 5 SW State:IL Lat:41.20N Long:088.55W Elev: 525 ID:116526 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.2 17.5 28.6 38.7 49.6 59.3 63.4 61.3 52.8 40.9 29.7 18.2 39.4 Maximum 30.5 36.4 48.6 61.8 73.1 82.0 84.9 83.2 76.9 65.4 49.0 35.8 60.6 Mean 21.4 27.0 38.6 50.3 61.4 70.7 74.2 72.3 64.9 53.2 39.4 27.0 50.0 Precip. 1.45 1.32 2.60 3.44 4.00 4.13 3.64 3.78 3.50 2.59 2.95 2.27 35.67 HDD 1353 1066 820 447 186 19 3 19 90 381 769 1178 6331 CDD 0 0 0 4 72 189 287 243 85 14 0 0 894 City:PALESTINE 2 W State:IL Lat:39.00N Long:087.39W Elev: 470 ID:116558 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.9 25.8 35.3 44.3 54.4 63.5 67.0 64.8 56.8 45.4 36.5 26.2 45.1 Maximum 37.5 43.5 55.0 66.3 76.7 85.2 88.5 86.5 80.5 68.8 54.3 42.0 65.4 Mean 29.2 34.7 45.2 55.3 65.6 74.4 77.8 75.7 68.7 57.1 45.4 34.1 55.3 Precip. 2.45 2.58 3.80 4.00 4.67 3.81 4.24 3.76 3.50 3.03 3.85 3.15 42.84 HDD 1110 850 616 302 115 9 0 5 37 278 589 959 4870 CDD 0 0 0 11 131 288 395 335 148 33 1 0 1342 City:PANA 3 E State:IL Lat:39.22N Long:089.02W Elev: 700 ID:116579 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 15.9 20.5 30.7 41.6 51.8 61.3 64.9 62.6 54.0 43.1 32.0 21.9 41.7 Maximum 34.4 40.2 51.6 63.8 74.0 83.7 87.8 85.9 79.4 67.6 52.2 39.7 63.4 Mean 25.2 30.4 41.2 52.7 62.9 72.5 76.4 74.3 66.7 55.4 42.1 30.8 52.6 Precip. 2.32 2.23 3.57 3.87 4.15 4.46 3.96 3.01 3.06 3.00 3.80 3.14 40.57 HDD 1235 971 740 374 152 11 0 7 70 314 688 1060 5622 CDD 0 0 0 5 87 237 351 295 120 14 0 0 1109 City:PARIS WATERWORKS State:IL Lat:39.38N Long:087.42W Elev: 680 ID:116610 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 16.4 20.5 30.9 41.3 51.5 61.3 64.7 62.5 54.5 43.4 32.8 22.5 41.9 Maximum 33.6 39.4 51.0 62.9 73.7 82.8 85.9 83.9 77.9 66.0 51.3 38.7 62.3 Mean 25.0 30.0 41.0 52.1 62.6 72.1 75.3 73.2 66.2 54.7 42.1 30.6 52.1 Precip. 2.23 2.23 3.27 3.96 4.31 4.24 4.43 4.42 2.94 2.78 3.68 3.10 41.59 HDD 1241 981 746 393 165 13 0 11 71 336 689 1066 5712 CDD 0 0 0 5 90 225 320 265 106 18 0 0 1029 City:PARK FOREST State:IL Lat:41.30N Long:087.41W Elev: 710 ID:116616 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.8 19.7 29.7 39.4 50.0 59.5 64.7 63.3 55.2 43.2 32.8 21.1 41.1 Maximum 29.2 34.7 45.7 58.1 70.0 80.0 83.7 81.5 74.7 63.0 47.5 34.8 58.6 Mean 22.0 27.2 37.7 48.8 60.0 69.8 74.2 72.4 65.0 53.1 40.2 28.0 49.9 Precip. 1.79 1.64 2.73 3.80 4.14 4.66 4.08 3.82 3.15 2.79 3.38 2.67 38.65 HDD 1333 1059 846 491 222 29 1 15 85 380 745 1149 6355 CDD 0 0 0 3 66 171 286 245 84 11 0 0 866 City:PAW PAW 2 NW State:IL Lat:41.43N Long:089.00W Elev: 950 ID:116661 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 7.7 13.3 24.6 35.8 47.2 56.4 60.4 58.0 49.5 37.7 26.2 14.0 35.9 Maximum 25.3 30.9 43.2 57.4 69.7 79.2 82.1 79.8 73.3 61.3 44.7 30.8 56.5 Mean 16.5 22.1 33.9 46.6 58.5 67.8 71.3 68.9 61.4 49.5 35.5 22.4 46.2 Precip. 1.39 1.26 2.34 3.47 4.23 4.40 3.77 4.17 3.81 2.76 3.00 2.16 36.76 HDD 1503 1202 964 553 254 42 12 41 147 483 887 1320 7408 CDD 0 0 0 1 50 125 204 162 39 3 0 0 584 City:PAXTON 2 WSW State:IL Lat:40.27N Long:088.09W Elev: 790 ID:116663 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.2 18.7 29.5 38.7 49.9 59.2 62.3 60.2 52.6 41.5 31.1 20.1 39.8 Maximum 29.9 35.3 47.5 60.7 72.3 81.9 84.6 82.8 77.2 65.0 49.0 35.3 60.1 Mean 22.1 27.0 38.5 49.7 61.1 70.6 73.5 71.5 64.9 53.3 40.1 27.7 50.0 Precip. 1.66 1.40 3.17 3.41 4.38 3.47 3.75 3.26 3.20 3.30 3.02 3.04 37.06 HDD 1331 1064 821 462 196 22 5 21 86 375 749 1156 6288 CDD 0 0 0 3 75 188 267 222 82 10 0 0 847 City:PAYSON State:IL Lat:39.49N Long:091.15W Elev: 720 ID:116670 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.60 1.86 2.74 3.45 5.16 3.42 4.26 3.95 3.51 3.09 3.17 2.38 38.59 City:PEORIA GTR PEORIA AP State:IL Lat:40.40N Long:089.41W Elev: 652 ID:116711 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.3 19.7 30.2 40.3 50.8 60.1 64.6 62.6 54.0 42.3 31.4 20.1 40.9 Maximum 30.7 36.6 49.4 62.0 73.0 82.2 85.7 83.6 76.7 64.4 48.8 35.5 60.7 Mean 22.5 28.2 39.8 51.2 61.9 71.1 75.1 73.1 65.4 53.4 40.1 27.8 50.8 Precip. 1.50 1.67 2.83 3.56 4.17 3.84 4.02 3.16 3.12 2.76 2.99 2.40 36.03 HDD 1316 1045 788 423 159 19 2 7 94 368 738 1136 6095 CDD 0 0 1 11 64 210 325 263 112 12 0 0 998 City:PEOTONE State:IL Lat:41.20N Long:087.47W Elev: 720 ID:116725 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.57 1.45 2.66 3.99 4.68 5.12 4.15 3.66 3.38 3.36 3.65 2.55 40.22 City:PERU State:IL Lat:41.21N Long:089.06W Elev: 620 ID:116753 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 11.6 16.8 27.7 37.8 48.7 58.7 63.1 61.0 51.9 40.6 29.8 18.0 38.8 Maximum 29.0 34.7 47.4 61.1 72.8 82.3 85.3 83.1 76.5 64.8 48.0 34.6 60.0 Mean 20.3 25.8 37.6 49.5 60.8 70.5 74.2 72.1 64.2 52.7 38.9 26.3 49.4 Precip. 1.46 1.42 2.67 3.60 4.55 4.10 4.04 4.11 3.63 3.00 2.83 2.29 37.70 HDD 1387 1098 852 471 205 17 5 25 94 388 784 1199 6525 CDD 0 0 0 4 73 182 289 243 70 7 0 0 868 City:PETERSBURG 3 SSW State:IL Lat:39.59N Long:089.52W Elev: 600 ID:116760 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.57 1.64 3.03 3.44 3.74 3.38 3.57 3.35 2.72 2.60 3.03 2.36 34.43 City:PETERSBURG 2 SW State:IL Lat:39.59N Long:089.52W Elev: 605 ID:116765 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.50 1.56 2.55 3.60 4.61 3.64 4.39 4.13 2.87 2.69 3.09 2.51 37.14 City:PINCKNEYVILLE 2 N State:IL Lat:38.06N Long:089.23W Elev: 430 ID:116779 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 3.15 2.64 4.09 3.77 5.31 4.39 4.96 2.44 3.37 2.61 4.31 3.36 44.40 City:PIPER CITY State:IL Lat:40.46N Long:088.12W Elev: 670 ID:116819 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.2 17.9 28.1 37.6 48.8 58.9 62.4 59.5 51.2 40.5 30.3 19.5 39.0 Maximum 31.1 36.9 49.3 62.2 74.2 83.5 86.1 84.0 78.1 65.5 49.2 36.2 61.4 Mean 22.2 27.4 38.7 49.9 61.5 71.2 74.3 71.8 64.7 53.0 39.8 27.9 50.2 Precip. 1.91 1.80 2.77 3.35 4.04 3.83 4.22 3.81 2.91 2.58 3.08 2.53 36.83 HDD 1330 1053 814 457 190 19 6 22 85 382 758 1152 6268 CDD 0 0 0 4 81 204 293 231 73 9 0 0 895 City:PLUMFIELD State:IL Lat:37.54N Long:089.01W Elev: 405 ID:116874 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 3.28 2.87 4.16 4.08 4.73 4.06 4.12 2.54 3.50 2.66 4.96 3.53 44.49 City:PONTIAC State:IL Lat:40.53N Long:088.38W Elev: 650 ID:116910 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.8 18.3 28.6 38.7 49.6 59.8 63.6 61.7 53.5 41.9 31.0 20.1 40.1 Maximum 29.9 35.7 48.2 61.5 73.1 82.1 84.7 82.7 77.0 64.8 48.7 35.4 60.3 Mean 21.9 27.0 38.4 50.1 61.4 71.0 74.2 72.2 65.3 53.4 39.9 27.8 50.2 Precip. 1.63 1.44 2.82 3.41 3.83 4.11 4.07 3.56 3.04 2.67 3.02 2.51 36.11 HDD 1339 1064 825 452 191 19 4 19 80 373 755 1155 6276 CDD 0 0 0 5 77 197 288 243 87 12 0 0 909 City:PRAIRIE DUROCHER State:IL Lat:38.05N Long:090.06W Elev: 395 ID:116973 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.13 2.19 3.75 3.74 4.27 3.53 4.05 3.55 3.72 3.32 4.11 3.30 41.66 City:PRINCETON State:IL Lat:41.23N Long:089.28W Elev: 695 ID:116998 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.8 19.4 29.5 40.1 51.2 60.8 64.8 62.7 54.6 43.0 31.1 19.4 40.9 Maximum 29.4 34.8 47.5 61.2 73.3 82.3 85.1 82.3 74.9 63.0 46.5 33.4 59.5 Mean 21.6 27.1 38.5 50.7 62.3 71.6 75.0 72.5 64.8 53.0 38.8 26.4 50.2 Precip. 1.65 1.48 2.46 3.76 4.09 4.36 3.34 4.76 3.65 2.94 2.93 2.45 37.87 HDD 1346 1061 821 435 171 13 2 16 88 381 786 1197 6317 CDD 0 0 0 4 85 210 310 248 81 9 0 0 947 City:PRINCEVILLE State:IL Lat:40.56N Long:089.47W Elev: 735 ID:117004 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 9.5 14.8 25.5 36.6 47.5 57.3 60.6 58.5 49.4 38.5 27.0 16.0 36.8 Maximum 30.4 36.7 49.7 63.2 73.4 81.8 84.9 82.5 76.1 64.7 49.2 35.8 60.7 Mean 20.0 25.8 37.6 49.9 60.5 69.6 72.8 70.5 62.8 51.6 38.1 25.9 48.8 Precip. 1.95 1.72 3.06 3.72 4.58 3.92 3.91 3.72 3.39 2.84 2.98 2.45 38.24 HDD 1396 1099 849 463 203 32 10 35 137 427 807 1212 6670 CDD 0 0 0 8 62 168 250 205 70 12 0 0 775 City:QUINCY BALDWIN AP State:IL Lat:39.57N Long:091.12W Elev: 763 ID:117072 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 16.7 22.0 32.3 42.8 53.0 62.2 66.6 64.3 55.9 44.6 33.2 21.9 43.0 Maximum 32.7 38.7 50.9 63.1 72.8 81.8 86.0 84.0 77.1 65.5 50.2 37.2 61.7 Mean 24.7 30.4 41.6 53.0 62.9 72.0 76.3 74.2 66.5 55.1 41.7 29.6 52.3 Precip. 1.36 1.84 3.04 3.79 4.86 3.61 3.84 3.44 3.85 3.21 3.23 2.37 38.44 HDD 1249 971 724 370 150 13 1 13 74 318 700 1098 5681 CDD 0 0 0 8 84 223 353 297 119 10 0 0 1094 City:QUINCY DAM 21 State:IL Lat:39.54N Long:091.26W Elev: 483 ID:117077 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 16.0 20.6 30.1 40.8 51.3 60.9 65.5 62.9 54.8 43.0 32.5 21.1 41.6 Maximum 33.7 40.0 52.1 64.8 74.7 83.8 88.0 85.8 77.9 66.3 50.9 37.9 63.0 Mean 24.9 30.3 41.1 52.8 63.0 72.4 76.8 74.4 66.4 54.7 41.7 29.5 52.3 Precip. 1.36 1.74 2.93 3.48 4.61 3.26 3.89 3.09 3.45 2.50 3.10 2.22 35.63 HDD 1245 971 741 375 149 12 0 12 70 332 699 1101 5707 CDD 0 0 0 9 86 232 364 302 112 12 0 0 1117 City:QUINCY MEMORIAL BRIDGE State:IL Lat:39.56N Long:091.25W Elev: 508 ID:117082 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.54 1.98 3.21 3.70 4.57 3.59 4.53 3.33 4.02 2.73 3.26 2.49 38.95 City:RAMSEY State:IL Lat:39.09N Long:089.06W Elev: 600 ID:117126 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.32 1.92 3.04 3.69 4.28 3.70 3.81 3.29 2.94 2.82 3.76 2.28 37.85 City:RANTOUL State:IL Lat:40.19N Long:088.10W Elev: 740 ID:117150 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.7 18.5 29.0 38.7 50.2 60.2 63.5 61.1 52.7 41.1 30.8 20.3 40.0 Maximum 32.6 38.2 49.9 62.7 74.5 84.3 87.4 85.3 79.2 66.5 50.7 37.8 62.4 Mean 23.2 28.4 39.5 50.7 62.4 72.3 75.5 73.2 66.0 53.8 40.8 29.1 51.2 Precip. 1.72 1.78 3.06 3.64 4.21 3.88 4.39 4.35 2.95 2.91 3.17 2.69 38.75 HDD 1298 1026 792 434 183 18 2 14 76 360 728 1115 6046 CDD 0 0 0 5 102 234 326 269 104 14 0 0 1054 City:RED BUD 5 SE State:IL Lat:38.11N Long:089.56W Elev: 430 ID:117157 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.28 2.36 3.76 3.98 4.37 3.67 3.83 3.45 3.18 3.14 4.14 3.33 41.49 City:REND LAKE DAM State:IL Lat:38.02N Long:088.59W Elev: 455 ID:117187 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.26 2.62 4.22 4.29 4.38 4.48 3.25 3.00 3.31 2.89 4.27 3.39 42.36 City:ROCHELLE State:IL Lat:41.55N Long:089.04W Elev: 775 ID:117354 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 8.1 13.7 24.6 35.2 46.7 57.0 60.2 58.4 49.2 37.4 26.9 14.8 36.0 Maximum 26.7 32.1 44.6 58.1 70.4 79.4 83.1 81.1 74.1 62.4 45.6 32.0 57.5 Mean 17.4 22.9 34.6 46.7 58.6 68.2 71.7 69.8 61.7 49.9 36.3 23.4 46.8 Precip. 1.25 1.25 1.87 3.48 3.58 4.12 3.42 4.35 3.23 2.73 2.54 1.82 33.64 HDD 1475 1179 943 553 254 50 14 34 141 472 863 1291 7269 CDD 0 0 0 1 54 145 222 181 40 4 0 0 647 City:ROCKFORD AP State:IL Lat:42.12N Long:089.06W Elev: 733 ID:117382 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.8 16.3 26.7 36.8 47.9 57.6 62.6 60.9 51.8 40.1 29.0 16.9 38.1 Maximum 27.2 33.0 45.5 59.1 71.2 79.9 83.1 80.9 73.9 61.8 45.5 32.0 57.8 Mean 19.0 24.7 36.1 47.9 59.6 68.8 72.9 70.9 62.8 51.0 37.2 24.4 48.0 Precip. 1.41 1.34 2.39 3.62 4.02 4.80 4.10 4.21 3.47 2.57 2.63 2.06 36.63 HDD 1430 1150 912 522 215 36 5 14 136 444 832 1244 6940 CDD 0 0 1 7 49 162 263 205 74 7 0 0 768 City:ROCK ISLAND L&D 15 State:IL Lat:41.31N Long:090.34W Elev: 568 ID:117391 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.3 18.8 29.1 41.3 52.1 63.2 67.6 65.6 56.6 45.0 31.8 19.6 42.0 Maximum 30.2 35.5 47.5 60.6 72.2 81.4 85.1 83.3 76.4 64.6 47.8 34.7 59.9 Mean 21.8 27.2 38.3 51.0 62.2 72.3 76.4 74.5 66.5 54.8 39.8 27.2 51.0 Precip. 1.28 1.41 2.59 3.64 4.44 4.75 2.99 4.31 2.90 2.39 2.47 1.93 35.10 HDD 1342 1060 828 428 172 12 0 9 66 332 756 1174 6179 CDD 0 0 0 5 83 232 352 302 111 15 0 0 1100 City:ROSICLARE 5 NW State:IL Lat:37.28N Long:088.24W Elev: 400 ID:117487 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.8 23.9 33.1 42.1 51.7 60.3 65.0 63.1 54.9 42.6 34.1 25.2 43.1 Maximum 40.9 47.1 57.4 67.7 75.8 83.5 87.4 86.6 80.0 70.0 56.9 45.6 66.6 Mean 30.9 35.5 45.3 54.9 63.8 71.9 76.2 74.9 67.5 56.3 45.5 35.4 54.8 Precip. 3.48 3.68 4.71 4.75 5.02 4.19 4.22 3.49 3.24 3.22 4.41 4.29 48.70 HDD 1058 826 611 313 132 9 0 5 59 287 587 918 4805 CDD 0 0 0 10 95 217 348 310 133 18 1 0 1132 City:RUSHVILLE State:IL Lat:40.07N Long:090.34W Elev: 660 ID:117551 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.6 19.7 30.3 41.1 51.3 60.8 65.3 62.8 54.3 42.9 31.1 20.5 41.2 Maximum 32.2 38.3 50.0 62.7 73.0 82.0 86.5 84.4 77.5 66.0 50.0 37.1 61.6 Mean 23.4 29.0 40.2 51.9 62.2 71.4 75.9 73.6 65.9 54.5 40.6 28.8 51.5 Precip. 1.55 1.89 3.05 3.89 5.14 3.92 3.87 3.54 3.63 3.25 3.16 2.43 39.32 HDD 1290 1008 771 400 162 14 0 12 71 338 734 1122 5922 CDD 0 0 0 6 74 207 336 277 99 11 0 0 1010 City:STE MARIE State:IL Lat:38.56N Long:088.01W Elev: 500 ID:117603 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.61 2.44 3.90 4.13 4.63 4.05 4.30 3.59 3.38 2.85 4.11 3.21 43.20 City:SALEM State:IL Lat:38.39N Long:088.57W Elev: 550 ID:117636 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.1 22.3 32.5 43.6 53.7 63.2 68.1 66.0 57.2 45.1 33.9 23.9 44.0 Maximum 36.8 42.7 54.1 65.4 75.3 84.2 88.2 86.6 79.6 68.6 53.7 41.6 64.7 Mean 27.5 32.5 43.3 54.5 64.5 73.7 78.2 76.3 68.4 56.9 43.8 32.8 54.4 Precip. 2.46 2.53 3.98 4.01 4.37 4.15 3.90 3.43 3.22 3.10 4.12 3.26 42.53 HDD 1166 910 674 326 122 7 0 3 46 279 636 1000 5169 CDD 0 0 0 11 108 269 408 353 146 25 0 0 1320 City:SHAWNEETOWN OLD TOWN State:IL Lat:37.42N Long:088.08W Elev: 350 ID:117859 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 3.12 3.31 4.68 4.21 5.00 3.91 3.88 3.34 2.81 2.57 4.42 3.82 45.07 City:SIDELL 5 NW State:IL Lat:39.59N Long:087.53W Elev: 675 ID:117952 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.08 1.97 2.89 3.68 4.32 3.48 4.66 3.73 2.84 2.82 3.45 2.84 38.76 City:SMITHLAND LOCK & DAM State:IL Lat:37.10N Long:088.26W Elev: 357 ID:118020 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 23.8 26.7 36.6 45.1 54.9 63.3 68.5 66.7 59.4 46.4 36.9 28.0 46.4 Maximum 40.8 46.5 56.8 67.5 76.3 84.6 88.7 87.2 80.7 69.5 56.7 45.3 66.7 Mean 32.3 36.6 46.7 56.3 65.6 74.0 78.6 77.0 70.1 58.0 46.8 36.7 56.6 Precip. 3.33 3.52 4.39 4.57 4.54 4.19 4.49 2.74 3.57 3.38 4.06 4.30 47.08 HDD 1013 795 569 276 100 3 0 1 32 249 548 879 4465 CDD 0 0 2 14 118 272 421 372 183 31 1 0 1414 City:SPARTA 1 W State:IL Lat:38.07N Long:089.43W Elev: 535 ID:118147 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.3 24.5 33.2 43.1 52.7 62.3 66.7 64.4 55.9 44.7 34.9 25.3 44.0 Maximum 37.8 44.2 54.8 65.5 75.3 84.1 88.3 86.9 79.6 69.2 54.4 42.4 65.2 Mean 29.1 34.4 44.0 54.3 64.0 73.2 77.5 75.7 67.8 57.0 44.7 33.9 54.6 Precip. 2.43 2.53 4.06 4.10 4.51 3.75 4.19 3.31 3.08 3.26 4.21 3.31 42.74 HDD 1113 859 651 330 128 7 0 6 56 270 610 967 4997 CDD 0 0 0 10 97 253 387 336 138 21 0 0 1242 City:SPRINGFIELD CAPITAL AP State:IL Lat:39.51N Long:089.41W Elev: 586 ID:118179 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 17.1 22.2 32.4 42.2 52.7 61.9 66.0 63.9 55.4 44.4 33.7 22.6 42.9 Maximum 33.1 38.9 51.1 63.4 74.4 83.3 86.5 84.5 78.5 66.6 50.9 38.0 62.4 Mean 25.1 30.6 41.8 52.8 63.6 72.6 76.3 74.2 67.0 55.5 42.3 30.3 52.7 Precip. 1.62 1.80 3.15 3.36 4.06 3.77 3.53 3.41 2.83 2.62 2.87 2.54 35.56 HDD 1239 980 726 376 126 14 1 4 77 319 674 1060 5596 CDD 0 0 2 17 84 249 358 291 140 23 1 0 1165 City:STOCKTON 3 NNE State:IL Lat:42.24N Long:090.00W Elev: 970 ID:118293 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 9.5 15.7 25.9 36.3 47.7 56.7 60.8 58.6 50.2 38.9 28.1 15.4 37.0 Maximum 26.2 32.1 44.1 58.2 70.3 79.0 81.9 80.0 72.7 61.3 44.6 31.0 56.8 Mean 17.9 23.9 35.0 47.3 59.0 67.9 71.4 69.3 61.5 50.1 36.4 23.2 46.9 Precip. 1.15 1.40 2.35 3.52 3.81 4.65 3.17 4.35 3.80 2.70 2.69 1.61 35.20 HDD 1461 1152 930 534 234 39 10 34 149 464 860 1295 7162 CDD 0 0 0 2 48 124 207 166 41 3 0 0 591 City:STREATOR 3 SE State:IL Lat:41.05N Long:088.49W Elev: 610 ID:118353 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.89 1.81 2.97 3.67 3.74 4.34 4.31 3.62 3.20 2.81 3.18 2.62 38.16 City:TISKILWA 2 SE State:IL Lat:41.16N Long:089.28W Elev: 640 ID:118604 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 13.4 18.8 29.0 38.9 48.8 58.1 62.1 60.1 51.9 41.2 30.8 19.1 39.4 Maximum 30.5 36.5 49.0 62.7 74.4 82.9 86.0 84.2 77.7 65.4 48.9 35.6 61.2 Mean 22.0 27.7 39.0 50.8 61.6 70.5 74.1 72.2 64.8 53.3 39.9 27.4 50.3 Precip. 1.35 1.48 2.59 3.66 3.96 4.79 3.80 4.00 3.49 2.86 2.70 2.12 36.80 HDD 1336 1046 806 431 178 18 4 15 90 374 755 1168 6221 CDD 0 0 0 5 72 182 285 236 84 11 0 0 875 City:TUSCOLA State:IL Lat:39.48N Long:088.17W Elev: 655 ID:118684 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.0 22.9 32.7 42.3 53.1 62.3 65.9 63.8 56.4 45.2 34.5 23.9 43.4 Maximum 34.4 40.4 52.6 65.5 76.4 85.4 88.0 86.0 80.4 68.3 52.2 39.3 64.1 Mean 26.2 31.7 42.7 53.9 64.8 73.9 77.0 74.9 68.4 56.8 43.4 31.6 53.8 Precip. 2.29 2.12 3.14 3.84 3.96 4.15 4.64 3.73 3.14 2.86 3.74 3.05 40.66 HDD 1203 935 693 342 134 9 0 8 44 279 649 1037 5333 CDD 0 0 0 8 127 273 370 314 147 25 0 0 1264 City:URBANA State:IL Lat:40.05N Long:088.14W Elev: 743 ID:118740 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 16.2 21.1 30.4 39.9 51.1 60.4 64.4 62.4 54.3 42.9 32.6 21.9 41.5 Maximum 32.0 37.6 49.5 62.2 73.6 82.6 85.2 83.2 77.6 65.1 49.5 36.8 61.2 Mean 24.1 29.4 40.0 51.1 62.4 71.5 74.8 72.8 66.0 54.0 41.1 29.4 51.4 Precip. 1.90 2.01 3.21 3.65 4.80 4.21 4.67 4.37 3.22 2.81 3.45 2.76 41.06 HDD 1268 998 775 422 174 17 1 11 73 353 718 1106 5916 CDD 0 0 0 4 92 212 304 254 101 12 0 0 979 City:UTICA STARVED ROCK DAM State:IL Lat:41.19N Long:088.59W Elev: 460 ID:118756 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.66 1.66 2.85 3.61 4.26 3.91 3.74 3.77 3.59 2.59 3.03 2.34 37.01 City:VANDALIA State:IL Lat:38.58N Long:089.06W Elev: 540 ID:118781 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.0 22.6 32.4 42.7 52.9 62.2 66.7 64.2 55.1 43.1 33.8 23.6 43.1 Maximum 34.5 40.5 51.7 63.8 74.3 83.1 87.5 85.7 79.0 67.3 52.6 39.9 63.3 Mean 26.3 31.6 42.1 53.3 63.6 72.7 77.1 75.0 67.1 55.2 43.2 31.8 53.3 Precip. 2.49 2.41 3.72 3.57 4.11 3.93 3.61 2.80 2.97 2.84 3.70 2.75 38.90 HDD 1201 937 712 359 140 11 0 11 62 319 655 1030 5437 CDD 0 0 0 7 96 241 375 318 123 15 0 0 1175 City:VIRDEN State:IL Lat:39.30N Long:089.46W Elev: 675 ID:118860 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.4 23.5 33.2 43.5 53.6 62.4 65.8 63.5 55.9 45.2 34.4 23.6 43.6 Maximum 34.8 40.7 53.0 65.7 75.8 84.2 87.9 86.2 80.2 68.2 52.3 39.4 64.0 Mean 26.6 32.1 43.1 54.6 64.7 73.3 76.9 74.9 68.1 56.7 43.4 31.5 53.8 Precip. 1.85 2.02 3.22 3.59 4.37 3.92 3.62 3.06 2.95 2.58 3.34 2.53 37.05 HDD 1189 921 679 325 127 9 0 8 53 280 649 1038 5278 CDD 0 0 0 13 118 259 366 313 143 24 0 0 1236 City:VIRGINIA State:IL Lat:39.57N Long:090.13W Elev: 620 ID:118870 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.67 1.90 3.22 3.42 4.65 3.87 3.95 3.44 3.24 2.90 3.33 2.61 38.20 City:WALNUT State:IL Lat:41.33N Long:089.36W Elev: 690 ID:118916 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 10.7 16.7 28.1 38.7 50.6 59.7 63.6 61.3 52.8 40.9 29.4 17.2 39.1 Maximum 28.0 33.1 45.7 59.3 71.3 80.5 83.4 81.4 74.5 62.9 46.1 33.0 58.3 Mean 19.4 24.9 36.9 49.0 61.0 70.1 73.5 71.4 63.7 51.9 37.8 25.1 48.7 Precip. 1.31 1.35 2.65 3.49 4.43 4.52 3.61 4.36 3.45 2.80 2.57 2.03 36.57 HDD 1415 1122 870 484 202 18 6 22 105 413 818 1237 6712 CDD 0 0 0 4 76 171 270 220 63 7 0 0 811 City:WALTONVILLE State:IL Lat:38.14N Long:089.02W Elev: 450 ID:118932 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 3.04 2.34 4.20 4.08 4.21 4.12 3.38 2.97 3.14 2.68 5.04 3.35 42.55 City:WATERLOO State:IL Lat:38.20N Long:090.09W Elev: 650 ID:119002 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 20.3 25.1 35.1 44.6 54.7 63.8 68.1 66.2 58.6 47.0 36.2 25.1 45.4 Maximum 37.6 44.0 54.8 66.0 75.6 84.4 88.5 86.9 79.9 68.6 54.3 42.0 65.2 Mean 29.0 34.6 45.0 55.3 65.2 74.1 78.3 76.6 69.3 57.8 45.3 33.6 55.3 Precip. 2.32 2.40 3.73 4.16 4.04 4.01 4.25 3.13 3.41 3.05 4.21 3.40 42.11 HDD 1118 853 621 306 110 6 0 3 41 250 595 976 4879 CDD 0 0 0 15 114 279 412 361 168 27 1 0 1377 City:WATSEKA 2 NW State:IL Lat:40.48N Long:087.45W Elev: 620 ID:119021 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.0 18.1 29.2 38.8 49.8 59.4 63.4 60.8 52.5 41.4 31.6 20.5 40.0 Maximum 30.1 35.6 47.8 60.2 72.0 81.7 84.4 82.5 76.8 64.4 48.7 35.5 60.0 Mean 22.1 26.9 38.5 49.5 60.9 70.6 73.9 71.7 64.7 52.9 40.2 28.0 50.0 Precip. 1.61 1.73 3.36 3.77 4.04 4.62 4.22 3.65 3.41 2.91 3.33 2.57 39.22 HDD 1331 1069 822 468 204 23 3 25 88 383 745 1147 6308 CDD 0 0 0 3 77 189 279 232 78 8 0 0 866 City:WAUKEGAN State:IL Lat:42.21N Long:087.53W Elev: 700 ID:119029 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 12.0 16.6 26.0 35.6 45.8 55.3 61.3 60.5 52.4 40.9 29.9 18.3 37.9 Maximum 28.5 32.9 43.0 54.6 66.7 77.1 81.7 80.1 73.1 61.6 47.3 33.9 56.7 Mean 20.3 24.8 34.5 45.1 56.3 66.2 71.5 70.3 62.8 51.3 38.6 26.1 47.3 Precip. 1.60 1.40 2.15 3.73 3.44 3.62 3.49 4.22 3.40 2.42 2.57 2.05 34.09 HDD 1387 1126 945 598 301 79 11 37 118 430 793 1206 7031 CDD 0 0 0 0 30 114 213 201 50 5 0 0 613 City:WAUKEGAN NO 2 State:IL Lat:42.22N Long:087.49W Elev: 650 ID:119030 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 1.07 0.98 2.12 3.71 3.31 3.35 3.57 3.88 3.73 2.27 2.69 1.64 32.32 City:WAYNE CITY 1 N State:IL Lat:38.21N Long:088.35W Elev: 440 ID:119040 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precip. 2.65 2.43 3.31 4.19 4.60 3.72 3.42 2.93 2.91 2.91 3.91 3.55 40.53 City:WHEATON 3 SE State:IL Lat:41.49N Long:088.04W Elev: 680 ID:119221 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 14.2 18.9 28.4 37.6 47.6 57.4 62.8 61.5 53.4 42.1 31.7 20.5 39.7 Maximum 32.0 38.0 50.0 62.8 74.8 83.8 86.8 85.0 78.4 66.5 50.0 36.9 62.1 Mean 23.1 28.5 39.2 50.2 61.2 70.6 74.8 73.3 65.9 54.3 40.9 28.7 50.9 Precip. 1.85 1.56 2.62 3.80 3.94 3.91 3.97 4.60 3.38 2.66 3.20 2.45 37.94 HDD 1298 1023 800 447 191 22 2 13 65 343 724 1125 6053 CDD 0 0 0 3 72 191 306 267 91 12 0 0 942 City:WHITE HALL 1 E State:IL Lat:39.26N Long:090.23W Elev: 580 ID:119241 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 15.7 20.1 30.4 41.5 51.7 61.0 65.0 62.7 53.8 42.5 31.7 21.4 41.5 Maximum 34.3 40.3 51.8 63.5 73.8 82.6 86.7 84.8 78.0 67.2 51.8 39.5 62.9 Mean 25.0 30.2 41.1 52.5 62.8 71.8 75.9 73.8 65.9 54.9 41.8 30.5 52.2 Precip. 1.60 1.75 3.28 3.55 4.34 3.56 3.37 2.84 2.96 2.62 3.25 2.57 35.69 HDD 1241 975 741 381 150 12 0 12 72 327 697 1072 5680 CDD 0 0 0 6 80 216 337 283 98 13 0 0 1033 City:WINDSOR State:IL Lat:39.27N Long:088.36W Elev: 690 ID:119354 Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Minimum 18.9 23.7 33.1 42.8 53.2 61.9 65.6 63.5 56.1 45.2 34.8 24.3 43.6 Maximum 34.5 40.5 52.2 64.6 74.9 83.4 86.9 85.4 79.7 68.1 52.4 39.5 63.5 Mean 26.7 32.1 42.7 53.7 64.1 72.7 76.3 74.5 67.9 56.7 43.6 31.9 53.6 Precip. 1.99 1.89 3.30 3.70 3.99 4.05 4.00 3.27 3.05 3.07 3.85 2.98 39.14 HDD 1188 921 693 346 138 9 0 7 48 281 642 1027 5300 CDD 0 0 0 7 109 239 349 298 133 22 0 0 1157
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