Weather in Fontana in December
In an average December, Fontana sees a daily high around 64°F and a low around 42°F, based on 1980–2026 of local climate records.
| Average high | 64°F |
|---|---|
| Typical high range | 54°F to 73°F |
| Average low | 42°F |
| Typical low range | 35°F to 49°F |
| Average daily precipitation | 0.10 in |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
84°F
2021-12-01
Lowest
45°F
1990-12-22
Low
Highest
58°F
2014-12-04
Lowest
25°F
1990-12-23
Feels-like
Highest
81°F
2021-12-01
Lowest
17°F
1990-12-23
Humidity
Highest
12.4 g/m³
2014-12-04
Lowest
1.2 g/m³
2020-12-05
Wind
Highest
17 mph
1997-12-11
Lowest
3 mph
2009-12-21
Gust
Highest
48 mph
1997-12-11
Lowest
8 mph
1982-12-16
Precip
Wettest
12.92 in
2010
Driest
0.02 in
2017
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