California Key City
1981-2010 Normals
 & Comparisons to 1971-2000 Normals

Eureka | Fresno | Los Angeles | Redding | Sacramento | San Diego | San Francisco | San Jose

Eureka
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 55.6 56.1 56.7 57.7 60.1 62.2 63.4 64.3 63.7 61.7 58.0 55.0 59.5
Mean 48.3 48.9 49.7 50.9 53.8 56.1 57.7 58.5 57.0 54.4 50.8 47.8 52.8
Min 41.1 41.7 42.6 44.1 47.5 50.1 52.0 52.8 50.4 47.1 43.5 40.6 46.1
Precip 6.50 5.63 5.30 3.32 1.78 0.75 0.18 0.31 0.59 2.24 5.61 8.12 40.33
HDD 516 451 476 423 347 266 226 200 239 329 428 533 4434
CDD 0 0 0 0 0 0 0 0 0 0 0 0 0
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 55.0 55.9 56.1 57.4 59.6 61.8 63.3 63.9 63.6 61.3 58 55.1 59.3
Mean 47.9 48.9 49.2 50.7 53.6 56.3 58.1 58.7 57.4 54.5 51 47.9 52.9
Min 40.8 41.8 42.2 44 47.6 50.7 52.8 53.4 51.2 47.7 43.9 40.6 46.4
Precip 5.97 5.51 5.55 2.91 1.62 0.65 0.16 0.38 0.86 2.36 5.78 6.35 38.10
HDD 530 451 448 430 354 263 216 198 232 326 423 532 4403
CDD 0 0 0 0 0 0 0 2 5 0 0 0 7
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 0.6 0.2 0.6 0.3 0.5 0.4 0.1 0.4 0.1 0.4 0.0 -0.1 0.2
Mean 0.4 0.0 0.5 0.2 0.2 -0.2 -0.4 -0.2 -0.4 -0.1 -0.2 -0.1 -0.1
Min 0.3 -0.1 0.4 0.1 -0.1 -0.6 -0.8 -0.6 -0.8 -0.6 -0.4 0.0 -0.3 % Change
Precip 0.53 0.12 -0.25 0.41 0.16 0.10 0.02 -0.07 -0.27 -0.12 -0.17 1.77 2.23 6%
HDD -14 0 28 -7 -7 3 10 2 7 3 5 1 31
CDD 0 0 0 0 0 0 0 -2 -5 0 0 0 -7
Fresno
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 54.8 61.6 67.6 74.6 84.1 92.0 98.4 97.1 90.9 79.5 65.1 54.9 76.7
Mean 46.6 51.5 56.6 62.0 70.1 77.2 83.0 81.7 76.2 66.2 54.3 46.5 64.3
Min 38.3 41.5 45.6 49.4 56.2 62.4 67.6 66.2 61.5 53.0 43.4 38.0 51.9
Precip 2.19 2.03 2.03 0.95 0.43 0.21 0.01 0.01 0.17 0.63 1.07 1.77 11.50
HDD 572 377 265 136 30 3 0 0 2 61 325 575 2346
CDD 0 0 5 46 190 369 558 516 338 100 2 0 2124
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 53.6 61.3 66.1 74 82.7 90.9 96.6 94.8 88.8 78.1 63 53.4 75.3
Mean 46.0 51.4 55.5 61.2 68.8 76.1 81.4 79.9 74.6 65.0 52.7 45.2 63.2
Min 38.4 41.4 44.9 48.4 54.9 61.2 66.1 64.9 60.4 51.9 42.3 37.0 51.0
Precip 2.16 2.12 2.2 0.76 0.39 0.23 0.01 0.01 0.26 0.65 1.10 1.34 11.23
HDD 578 377 283 140 37 4 0 0 3 70 344 597 2433
CDD 0 0 3 40 170 351 530 483 316 97 1 0 1991
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 1.2 0.3 1.5 0.6 1.4 1.1 1.8 2.3 2.1 1.4 2.1 1.5 1.4
Mean 0.6 0.1 1.1 0.8 1.3 1.1 1.6 1.8 1.6 1.2 1.6 1.3 1.1
Min -0.1 0.1 0.7 1.0 1.3 1.2 1.5 1.3 1.1 1.1 1.1 1.0 0.9 % Change
Precip 0.03 -0.09 -0.17 0.19 0.04 -0.02 0.00 0.00 -0.09 -0.02 -0.03 0.43 0.27 2%
HDD -6 0 -18 -4 -7 -1 0 0 -1 -9 -19 -22 -87
CDD 0 0 2 6 20 18 28 33 22 3 1 0 133
Los Angeles
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 68.2 68.6 70.2 72.7 74.5 78.1 83.1 84.4 83.1 78.5 72.8 67.7 75.2
Mean 58.0 58.9 60.6 63.1 65.8 69.2 73.3 74.3 73.1 68.6 62.4 57.6 65.4
Min 47.8 49.3 51.0 53.5 57.1 60.3 63.6 64.1 63.1 58.7 52.0 47.5 55.7
Precip 3.12 3.80 2.43 0.91 0.26 0.09 0.01 0.04 0.24 0.66 1.04 2.33 14.93
HDD 226 184 157 101 43 8 0 0 2 18 111 234 1084
CDD 9 14 20 44 67 134 259 287 244 129 33 4 1244
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 68.1 69.6 69.8 73.1 74.5 79.5 83.8 84.8 83.3 79 73.2 68.7 75.6
Mean 58.3 60.0 60.7 63.8 66.2 70.5 74.2 75.2 74.0 69.5 62.9 58.5 66.2
Min 48.5 50.3 51.6 54.4 57.9 61.4 64.6 65.6 64.6 59.9 52.6 48.3 56.6
Precip 3.33 3.68 3.14 0.83 0.31 0.06 0.01 0.13 0.32 0.37 1.05 1.91 15.14
HDD 206 149 144 83 36 5 0 0 1 11 91 201 927
CDD 15 23 26 58 84 178 295 325 281 164 44 13 1506
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 0.1 -1.0 0.4 -0.4 0.0 -1.4 -0.7 -0.4 -0.2 -0.5 -0.4 -1.0 -0.4
Mean -0.3 -1.1 -0.1 -0.7 -0.4 -1.3 -0.9 -0.9 -0.9 -0.9 -0.5 -0.9 -0.8
Min -0.7 -1.0 -0.6 -0.9 -0.8 -1.1 -1.0 -1.5 -1.5 -1.2 -0.6 -0.8 -0.9 % Change
Precip -0.21 0.12 -0.71 0.08 -0.05 0.03 0.00 -0.09 -0.08 0.29 -0.01 0.42 -0.21 -1%
HDD 20 35 13 18 7 3 0 0 1 7 20 33 157
CDD -6 -9 -6 -14 -17 -44 -36 -38 -37 -35 -11 -9 -262
Redding
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 55.0 59.7 64.5 70.5 80.8 90.2 98.4 96.6 90.4 77.8 62.5 54.5 75.1
Mean 45.7 49.5 53.7 58.3 67.3 75.9 82.2 79.8 74.1 63.6 51.7 45.4 62.3
Min 36.5 39.3 42.9 46.1 53.8 61.6 66.0 63.0 57.7 49.4 40.9 36.3 49.5
Precip 5.96 5.51 4.37 2.48 1.85 0.69 0.09 0.18 0.64 2.10 4.48 6.27 34.62
HDD 597 434 353 222 73 8 0 0 8 114 400 608 2817
CDD 0 0 3 21 144 335 533 459 280 71 1 0 1847
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 55.4 60.1 63.9 70.6 80.7 90.7 98.5 96.9 90.2 78.4 62.4 55.6 75.3
Mean 45.5 49.1 52.5 57.8 66.2 75.2 81.3 78.9 73.4 63.2 51.1 45.3 61.6
Min 35.5 38.1 41.1 44.9 51.6 59.6 64.1 60.8 56.5 48 39.8 35 47.9
Precip 6.5 5.49 5.15 2.40 1.66 0.69 0.05 0.22 0.48 2.18 4.03 4.67 33.52
HDD 606 445 390 239 99 7 0 0 13 131 420 611 2961
CDD 0 0 3 22 133 310 504 430 263 74 2 0 1741
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max -0.4 -0.4 0.6 -0.1 0.1 -0.5 -0.1 -0.3 0.2 -0.6 0.1 -1.1 -0.2
Mean 0.2 0.4 1.2 0.5 1.1 0.7 0.9 0.9 0.7 0.4 0.6 0.1 0.7
Min 1.0 1.2 1.8 1.2 2.2 2.0 1.9 2.2 1.2 1.4 1.1 1.3 1.6 % Change
Precip -0.54 0.02 -0.78 0.08 0.19 0.00 0.04 -0.04 0.16 -0.08 0.45 1.60 1.10 3%
HDD -9 -11 -37 -17 -26 1 0 0 -5 -17 -20 -3 -144
CDD 0 0 0 -1 11 25 29 29 17 -3 -1 0 106
Sacramento
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 53.8 60.3 65.1 71.1 79.9 87.1 92.1 91.2 87.2 77.6 63.8 53.9 73.6
Mean 46.3 50.8 54.6 58.7 65.5 71.4 75.2 74.6 71.4 63.9 53.3 46.2 61.0
Min 38.8 41.4 44.1 46.2 51.1 55.8 58.4 58.0 55.7 50.2 42.8 38.4 48.4
Precip 3.64 3.47 2.75 1.15 0.68 0.21 0.00 0.05 0.29 0.95 2.08 3.25 18.52
HDD 580 396 323 205 72 9 1 1 8 88 352 584 2619
CDD 0 0 1 15 87 203 318 298 202 53 1 0 1178
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 53.8 60.5 64.7 71.4 80 87.4 92.4 91.4 87.5 78.2 63.7 53.9 73.7
Mean 46.3 51.2 54.5 58.9 65.5 71.5 75.4 74.8 71.7 64.4 53.3 45.8 61.1
Min 38.8 41.9 44.2 46.3 50.9 55.5 58.3 58.1 55.8 50.6 42.8 37.7 48.4
Precip 3.84 3.54 2.8 1.02 0.53 0.2 0.05 0.06 0.36 0.89 2.19 2.45 17.93
HDD 580 387 335 208 97 10 0 0 11 84 359 595 2666
CDD 0 0 6 24 110 204 320 303 210 66 5 0 1248
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 0.0 -0.2 0.4 -0.3 -0.1 -0.3 -0.3 -0.2 -0.3 -0.6 0.1 0.0 -0.1
Mean 0.0 -0.4 0.1 -0.2 0.0 -0.1 -0.2 -0.2 -0.3 -0.5 0.0 0.4 -0.1
Min 0.0 -0.5 -0.1 -0.1 0.2 0.3 0.1 -0.1 -0.1 -0.4 0.0 0.7 0.0 % Change
Precip -0.20 -0.07 -0.05 0.13 0.15 0.01 -0.05 -0.01 -0.07 0.06 -0.11 0.80 0.59 3%
HDD 0 9 -12 -3 -25 -1 1 1 -3 4 -7 -11 -47
CDD 0 0 -5 -9 -23 -1 -2 -5 -8 -13 -4 0 -70
San Diego
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 65.1 65.0 65.6 67.5 68.5 70.8 74.6 76.4 75.9 72.8 69.0 64.7 69.7
Mean 57.1 57.9 59.4 61.7 64.0 66.4 70.0 71.6 70.6 66.7 61.3 56.5 63.6
Min 49.0 50.7 53.2 55.9 59.4 62.0 65.4 66.7 65.2 60.6 53.6 48.4 57.5
Precip 1.98 2.27 1.81 0.78 0.12 0.07 0.03 0.02 0.15 0.57 1.01 1.53 10.34
HDD 248 203 178 113 58 18 1 0 1 19 124 262 1225
CDD 2 3 5 14 25 60 156 203 168 71 13 0 720
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 65.8 66.3 66.3 68.7 69.3 72.2 75.8 77.5 77 74 69.9 66.3 70.8
Mean 57.8 58.9 60 62.6 64.6 67.4 70.9 72.5 71.6 67.6 61.8 57.6 64.4
Min 49.7 51.5 53.6 56.4 59.8 62.6 65.9 67.4 66.1 61.2 53.6 48.9 58.1
Precip 2.28 2.04 2.26 0.75 0.2 0.09 0.03 0.09 0.21 0.44 1.07 1.31 10.77
HDD 227 176 160 90 47 10 0 0 1 12 109 231 1063
CDD 2 4 5 17 32 81 183 230 199 97 15 1 866
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max -0.7 -1.3 -0.7 -1.2 -0.8 -1.4 -1.2 -1.1 -1.1 -1.2 -0.9 -1.6 -1.1
Mean -0.7 -1.0 -0.6 -0.9 -0.6 -1.0 -0.9 -0.9 -1.0 -0.9 -0.5 -1.1 -0.8
Min -0.7 -0.8 -0.4 -0.5 -0.4 -0.6 -0.5 -0.7 -0.9 -0.6 0.0 -0.5 -0.6 % Change
Precip -0.30 0.23 -0.45 0.03 -0.08 -0.02 0.00 -0.07 -0.06 0.13 -0.06 0.22 -0.43 -4%
HDD 21 27 18 23 11 8 1 0 0 7 15 31 162
CDD 0 -1 0 -3 -7 -21 -27 -27 -31 -26 -2 -1 -146
San Francisco
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 56.9 60.2 61.8 63.1 64.3 66.4 66.5 68.1 70.2 69.2 63.1 57.1 63.9
Mean 51.3 53.9 55.1 56.2 57.6 59.6 60.3 61.6 62.7 61.5 56.6 51.6 57.3
Min 45.7 47.5 48.5 49.2 51.0 52.8 54.1 55.1 55.1 53.7 50.1 46.1 50.7
Precip 4.50 4.46 3.26 1.46 0.70 0.16 0.00 0.06 0.21 1.12 3.16 4.56 23.65
HDD 425 313 307 273 236 174 155 120 100 136 254 415 2908
CDD 0 0 2 7 8 12 10 15 30 26 2 0 112
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 58.1 61.4 62.5 64.5 65.4 67.7 68.2 69.2 71.3 70.4 64.1 58.6 65.1
Mean 52.3 55.0 55.9 57.3 58.4 60.5 61.3 62.4 63.7 62.5 57.5 52.7 58.3
Min 46.4 48.5 49.2 50.1 51.4 53.2 54.4 55.6 56.1 54.6 50.8 46.7 51.4
Precip 4.72 4.15 3.4 1.25 0.54 0.13 0.04 0.09 0.28 1.19 3.31 3.18 22.28
HDD 396 283 263 233 214 150 133 107 95 100 232 383 2589
CDD 0 2 4 7 9 14 19 26 56 22 5 0 164
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max -1.2 -1.2 -0.7 -1.4 -1.1 -1.3 -1.7 -1.1 -1.1 -1.2 -1.0 -1.5 -1.2
Mean -1.0 -1.1 -0.8 -1.1 -0.8 -0.9 -1.0 -0.8 -1.0 -1.0 -0.9 -1.1 -1.0
Min -0.7 -1.0 -0.7 -0.9 -0.4 -0.4 -0.3 -0.5 -1.0 -0.9 -0.7 -0.6 -0.7 % Change
Precip -0.22 0.31 -0.14 0.21 0.16 0.03 -0.04 -0.03 -0.07 -0.07 -0.15 1.38 1.37 6%
HDD 29 30 44 40 22 24 22 13 5 36 22 32 319
CDD 0 -2 -2 0 -1 -2 -9 -11 -26 4 -3 0 -52
San Jose
1981-2010 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 58.1 61.9 65.7 69.3 74.3 79.1 81.9 81.9 80.1 74.0 64.3 58.0 70.7
Mean 50.1 53.3 56.2 58.9 63.4 67.5 70.0 70.1 68.5 63.2 55.1 50.0 60.5
Min 42.0 44.7 46.6 48.6 52.4 56.0 58.1 58.3 56.8 52.5 46.0 41.9 50.3
Precip 3.07 3.11 2.54 1.18 0.51 0.10 0.02 0.02 0.18 0.80 1.68 2.61 15.82
HDD 0 0 2 15 46 101 159 160 116 37 1 0 637
CDD 463 328 276 196 97 24 4 2 13 91 297 467 2258
1971-2000 Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max 59.3 63.4 67 72.1 76.7 81.8 84.3 84.0 82.2 75.9 65.3 58.9 72.6
Mean 50.5 54 56.7 60.2 64.3 68.6 70.9 70.9 69.5 64.1 55.5 50 61.3
Min 41.7 44.6 46.4 48.3 51.8 55.4 57.5 57.7 56.7 52.3 45.6 41 49.9
Precip 3.03 2.84 2.69 1.02 0.44 0.10 0.06 0.07 0.23 0.87 1.73 2.00 15.08
HDD 0 0 9 25 72 131 188 183 146 54 3 0 811
CDD 450 308 267 170 95 24 4 2 13 82 289 467 2171
Diff. btwn Normals Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max -1.2 -1.5 -1.3 -2.8 -2.4 -2.7 -2.4 -2.1 -2.1 -1.9 -1.0 -0.9 -1.9
Mean -0.4 -0.7 -0.5 -1.3 -0.9 -1.1 -0.9 -0.8 -1.0 -0.9 -0.4 0.0 -0.8
Min 0.3 0.1 0.2 0.3 0.6 0.6 0.6 0.6 0.1 0.2 0.4 0.9 0.4 % Change
Precip 0.04 0.27 -0.15 0.16 0.07 0.00 -0.04 -0.05 -0.05 -0.07 -0.05 0.61 0.74 5%
HDD 0 0 -7 -10 -26 -30 -29 -23 -30 -17 -2 0 -174
CDD 13 20 9 26 2 0 0 0 0 9 8 0 87
Source:  National Climatic Data Center (July 2011)

       Go to Golden Gate Weather Services