San Jose Weather Station
National Weather Service Cooperative Weather Station
May 2009
  Maximum Temperature Minimum Temperature Mean Temperature Heating Degree Days Cooling Degree Days Rainfall
1 69 51 60.0 5 0 T
2 66 54 60.0 5 0 0.04
3 69 58 63.5 1 0 0.01
4 76 55 65.5 0 1 T
5 77 61 69.0 0 4 0.04
6 78 56 67.0 0 2 0.00
7 76 55 65.5 0 1 0.00
8 78 52 65.0 0 0 0.00
9 77 51 64.0 1 0 0.00
10 80 52 66.0 0 1 0.00
11 74 52 63.0 2 0 0.00
12 73 49 61.0 4 0 0.00
13 76 50 63.0 2 0 0.00
14 74 51 62.5 2 0 0.00
15 81 58 69.5 0 5 0.00
16 95 57 76.0 0 11 0.00
17 97 63 80.0 0 15 0.00
18 76 56 66.0 0 1 0.00
19 75 53 64.0 1 0 0.00
20 72 50 61.0 4 0 0.00
21 78 48 63.0 2 0 0.00
22 76 50 63.0 2 0 0.00
23 69 52 60.5 4 0 0.00
24 65 52 58.5 6 0 0.00
25 75 53 64.0 1 0 0.00
26 81 50 65.5 0 1 0.00
27 81 57 69.0 0 4 0.00
28 79 54 66.5 0 2 0.00
29 77 56 66.5 0 2 0.00
30 72 58 65.0 0 0 0.00
31 71 56 63.5 1 0 0.00
Month 76.2 53.9 65.0 43 50 0.09
Normal 76.7 51.8 64.3 95 72 0.44
Anomaly -0.5 2.1 0.7 -52 -22 -0.35
20%
Highest 97 63 80.0 0.04
Lowest 65 48 58.5

Note:  Data here is preliminary and is taken from daily temperature and precipitation reports.

This document is offered as a public service from Golden Gate Weather Services. 

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