Weather in San Jose, California, United States in December
In an average December, San Jose sees a daily high around 57°F and a low around 39°F, based on 1981–2026 of local climate records.
| Average high | 57°F |
|---|---|
| Typical high range | 51°F to 64°F |
| Average low | 39°F |
| Typical low range | 32°F to 47°F |
| Average daily precipitation | 0.10 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
74°F
1990-12-09
Lowest
39°F
1990-12-22
Low
Highest
56°F
2025-12-21
Lowest
20°F
1990-12-22
Feels-like
Highest
56°F
2025-12-21
Lowest
11°F
1990-12-22
Humidity
Highest
12.6 g/m³
2024-12-23
Lowest
2.2 g/m³
1990-12-22
Wind
Highest
36 mph
1995-12-12
Lowest
4 mph
2025-12-14
Precip
Wettest
11.60 in
2022
Driest
0.10 in
2011
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