San Jose Weather Station
National Weather Service Cooperative Weather Station
September 2009
  Maximum Temperature Minimum Temperature Mean Temperature Heating Degree Days Cooling Degree Days Rainfall
1 83 60 71.5 0 7 0.00
2 92 65 78.5 0 14 0.00
3 92 61 76.5 0 12 0.00
4 75 56 65.5 0 1 0.00
5 78 54 66.0 0 1 0.00
6 77 58 67.5 0 3 0.00
7 79 55 67.0 0 2 0.00
8 83 53 68.0 0 3 0.00
9 80 56 68.0 0 3 0.00
10 92 58 75.0 0 10 0.00
11 91 62 76.5 0 12 0.00
12 73 60 66.5 0 2 T
13 78 60 69.0 0 4 0.19
14 74 59 66.5 0 2 0.00
15 82 56 69.0 0 4 0.00
16 79 57 68.0 0 3 0.00
17 84 61 72.5 0 8 0.00
18 95 61 78.0 0 13 0.00
19 86 60 73.0 0 8 0.00
20 90 59 74.5 0 10 0.00
21 89 59 74.0 0 9 0.00
22 92 60 76.0 0 11 0.00
23 79 60 69.5 0 5 0.00
24 81 57 69.0 0 4 0.00
25 87 57 72.0 0 7 0.00
26 96 60 78.0 0 13 0.00
27 93 61 77.0 0 12 0.00
28 71 56 63.5 1 0 0.00
29 70 54 62.0 3 0 0.00
30 73 46 59.5 5 0 0.00
Month 83.1 58.0 70.6 9 183 0.19
Normal 82.2 56.7 69.5 13 146 0.23
Anomaly 0.9 1.3 1.1 -4 37 -0.04
            83%
Highest 96 65        
Lowest 70 46        

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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