San Jose Weather Station*
Substation of the National Weather Service
Office of Emergency Services
SEPTEMBER 1999          
Date Maximum Temperature Minimum Temperature Mean Temperature Heating Degree Days (Base 65) Cooling Degree Days (Base 65) Precipitation
(4 p.m. - 4 p.m.)
1 80 53 66.5 0 2 0
2 81 56 68.5 0 4 0
3 75 56 65.5 0 1 0
4 77 53 65.0 0 0 0
5 86 56 71.0 0 6 0
6 83 57 70.0 0 5 0
7 83 56 69.5 0 5 0
8 76 58 67.0 0 2 0
9 78 58 68.0 0 3 0.04
10 79 59 69.0 0 4 0
11 74 54 64.0 1 0 0
12 75 54 64.5 1 0 0
13 75 56 65.5 0 1 0
14 74 58 66.0 0 1 0
15 75 59 67.0 0 2 0
16 78 56 67.0 0 2 0
17 78 56 67.0 0 2 0
18 72 56 64.0 1 0 0
19 72 58 65.0 0 0 0
20 77 56 66.5 0 2 0
21 80 55 67.5 0 3 0
22 78 60 69.0 0 4 0.02
23 82 59 70.5 0 6 T
24 79 58 68.5 0 4 0
25 86 56 71.0 0 6 0
26 94 56 75.0 0 10 0
27 93 58 75.5 0 11 0
28 91 58 74.5 0 10 0
29 93 60 76.5 0 12 0
30 91 61 76.0 0 11 0
Avg 80.5 56.9 68.7 3 113 0.06
Normal 80.6 55.8 68.2 19 115 0.24
Dep. Fm Normal -0.1 1.1 0.5 -16 -2 -0.18
             
T indicates Trace      

* Based on Preliminary Data