Weather in Santa Rosa, California, United States in December
In an average December, Santa Rosa sees a daily high around 55°F and a low around 39°F, based on 1981–2026 of local climate records.
| Average high | 55°F |
|---|---|
| Typical high range | 49°F to 62°F |
| Average low | 39°F |
| Typical low range | 32°F to 46°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
72°F
1989-12-04
Lowest
37°F
2007-12-28
Low
Highest
56°F
1996-12-31
Lowest
21°F
1990-12-22
Feels-like
Highest
56°F
1996-12-31
Lowest
10°F
1990-12-22
Humidity
Highest
11.7 g/m³
1996-12-31
Lowest
2.0 g/m³
1990-12-22
Wind
Highest
30 mph
1995-12-12
Lowest
3 mph
2010-12-01
Precip
Wettest
15.44 in
2005
Driest
0.06 in
1989
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