Weather in San Francisco, California, United States in December
In an average December, San Francisco sees a daily high around 56°F and a low around 43°F, based on 1981–2026 of local climate records.
| Average high | 56°F |
|---|---|
| Typical high range | 51°F to 61°F |
| Average low | 43°F |
| Typical low range | 38°F to 50°F |
| Average daily precipitation | 0.20 in |
December records
The most extreme December on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
69°F
1989-12-04
Lowest
41°F
1990-12-22
Low
Highest
57°F
1996-12-31
Lowest
27°F
1990-12-22
Feels-like
Highest
57°F
1996-12-31
Lowest
18°F
1990-12-22
Humidity
Highest
12.2 g/m³
2014-12-03
Lowest
2.4 g/m³
1990-12-22
Wind
Highest
35 mph
1995-12-12
Lowest
3 mph
1987-12-21
Precip
Wettest
12.54 in
2005
Driest
0.11 in
2017
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