San Jose Weather Station
National Weather Service Cooperative Weather Station
January 2010
  Maximum Temperature Minimum Temperature Mean Temperature Heating Degree Days Cooling Degree Days Rainfall
1 63 49 56.0 9 0 T
2 58 45 51.5 13 0 0.00
3 60 39 49.5 15 0 0.00
4 57 42 49.5 15 0 0.00
5 59 38 48.5 16 0 0.00
6 59 39 49.0 16 0 0.00
7 58 41 49.5 15 0 0.00
8 58 44 51.0 14 0 0.01
9 54 42 48.0 17 0 0.00
10 56 39 47.5 17 0 0.00
11 56 42 49.0 16 0 0.00
12 63 52 57.5 7 0 0.26
13 62 49 55.5 9 0 0.18
14 61 42 51.5 13 0 0.00
15 63 40 51.5 13 0 0.00
16 63 41 52.0 13 0 0.00
17 56 51 53.5 11 0 0.12
18 57 50 53.5 11 0 0.65
19 58 48 53.0 12 0 0.73
20 55 46 50.5 14 0 1.29
21 50 43 46.5 18 0 0.52
22 51 41 46.0 19 0 0.25
23 57 40 48.5 16 0 0.25
24 54 40 47.0 18 0 T
25 57 49 53.0 12 0 0.02
26 57 48 52.5 12 0 0.05
27 56 45 50.5 14 0 0.00
28 59 44 51.5 13 0 0.00
29 62 44 53.0 12 0 0.25
30 60 41 50.5 14 0 0.00
31 61 48 54.5 10 0  
Month 58.1 43.9 51.0 424 0 4.58
Normal 59.3 41.7 50.5 450 0 3.03
Anomaly -1.2 2.2 0.5 -26 0 1.55
151%
Highest 63 52
Lowest 50 38

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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