San Jose Weather Station
Substation of the National Weather Service
Office of Emergency Services
Monthly Meteorological Summary
April 1998
  Temperatures (F)   Moisture Wind    
Date Maximum Minimum Range Mean Normal Mean Departure from Normal Heating Degree Days (Base 65o) Cooling Degree Days (Base 65o) Atmospheric Pressure (inches)* Dewpoint* Relative Humidity* Precipitation (Midnight - Midnight) Miles/Direction* (FAA Tower Recording)    
1 60 46 14 53 57 -4 12 0 29.88 39 47 0.00 10 NNW   53
2 61 51 10 56 57 -1 9 0 30.03 45 65 0.13 10 NNW   56
3 59 44 15 52 57 -5 13 0 29.96 43 62 0.38 11 S   52
4 63 47 16 55 57 -2 10 0 29.94 39 49 0.02 7 NW   55
5 63 44 19 54 57 -3 11 0 29.98 42 58 0.00 7 NW   54
6 61 48 13 55 57 -2 10 0 30.02 46 68 0.12 3 NE   55
7 62 47 15 55 57 -2 10 0 30.16 43 56 0.00 11 NW   55
8 63 40 23 52 58 -6 13 0 30.23 43 53 0.00 10 WNW   52
9 69 49 20 59 58 1 6 0 30.13 46 43 0.00 12 S   59
10 69 52 17 61 58 3 4 0 29.97 45 44 0.00 5 SSW   61
11 61 48 13 55 58 -3 10 0 29.84 46 66 0.18 7 NW   55
12 61 46 15 54 58 -4 11 0 30.16 39 49 0.07 5 NNW   54
13 56 45 11 51 58 -7 14 0 30.05 45 81 0.53 Calm   51
14 60 39 21 50 58 -8 15 0 30.04 43 56 0.01 7 SW   50
15 64 41 23 53 58 -5 12 0 30.12 39 43 T 12 WNW   53
16 69 41 28 55 59 -4 10 0 30.22 48 48 0.00 8 N   55
17 69 43 26 56 59 -3 9 0 30.25 50 57 0.00 10 NW   56
18 72 44 28 58 59 -1 7 0 30.24 50 54 0.00 14 NW   58
19 71 46 25 59 59 0 6 0 29.88 53 52 0.00 3 NNE   59
20 76 52 24 64 59 5 1 0 30.09 57 52 0.00 3 Variable   64
21 89 51 38 70 59 11 0 5 29.90 61 40 0.00 6 WNW   70
22 76 62 14 69 59 10 0 4 29.85 55 63 0.00 13 SSW   69
23 68 56 12 62 60 2 3 0 29.95 55 83 0.01 10 NE   62
24 65 53 12 59 60 -1 6 0 30.07 50 62 T 14 NW   59
25 70 46 24 58 60 -2 7 0 30.09 52 55 0.00 15 N   58
26 79 48 31 64 60 4 1 0 30.08 48 51 0.00 6 WNW   64
27 83 52 31 68 60 8 0 3 30.03 54 38 0.00 5 Variable   68
28 83 56 27 70 60 10 0 5 29.94 55 39 0.00 5 WNW   70
29 84 56 28 70 60 10 0 5 29.89 63 63 0.00 13 NW   70
30 73 53 20 63 60 3 2 0 29.89 52 50 0.00 15 S   63
                               
(SUM)AVE 69 48 20 58 59 0 (212) (22) 30.03 48 55 (1.45) ---    
NORMAL 70 47 23 59 59 --- (215) (23) 29.98 --- 53 (1.17) ---    
      
T = Trace     + = Other Dates     (  ) = Sum Total      *  =  Data Taken at Approximately 4:00 p.m. DST