Weather in Fontana, California, United States in August
In an average August, Fontana sees a daily high around 94°F and a low around 65°F, based on 1981–2026 of local climate records.
| Average high | 94°F |
|---|---|
| Typical high range | 86°F to 102°F |
| Average low | 65°F |
| Typical low range | 57°F to 72°F |
| Average daily precipitation | 0.00 in |
August records
The most extreme August on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
110°F
1997-08-05
Lowest
76°F
2000-08-29
Low
Highest
82°F
2017-08-29
Lowest
50°F
1990-08-26
Feels-like
Highest
124°F
2020-08-15
Lowest
45°F
1990-08-26
Humidity
Highest
18.8 g/m³
1983-08-16
Lowest
4.4 g/m³
1981-08-21
Wind
Highest
28 mph
2023-08-20
Lowest
3 mph
1988-08-24
Precip
Wettest
2.85 in
2023
Driest
0.00 in
2019
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