Units

December 1939

San Francisco, CA

Average Temp
55.3°F
Record High
69.0°F
Record Low
44.0°F
Days Recorded
31 / 31

Historical December Records

Warmest December
1958 - 57.5°F
Coldest December
1972 - 47.2°F
Daily Temperature Range
High
Low
Average

Click any day to view hourly details

Daily Details

1
64.0
2
66.0
3
69.0
4
67.0
5
60.0
6
61.0
7
59.0
8
63.0
9
63.0
10
64.0
11
60.0
12
58.0
13
64.0
14
58.0
15
61.0
16
62.0
17
63.0
18
64.0
19
59.0
20
62.0
21
63.0
22
54.0
23
52.0
24
58.0
25
59.0
26
55.0
27
54.0
28
57.0
29
60.0
30
59.0
31
58.0
Data source: NOAA