Weather in Fontana in May
In an average May, Fontana sees a daily high around 77°F and a low around 55°F, based on 1980–2026 of local climate records.
| Average high | 77°F |
|---|---|
| Typical high range | 67°F to 89°F |
| Average low | 55°F |
| Typical low range | 49°F to 60°F |
| Average daily precipitation | 0.00 in |
May records
The most extreme May on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
105°F
1984-05-29
Lowest
55°F
1998-05-13
Low
Highest
71°F
1984-05-30
Lowest
43°F
1999-05-01
Feels-like
Highest
118°F
2003-05-28
Lowest
38°F
1995-05-06
Humidity
Highest
15.4 g/m³
2000-05-28
Lowest
2.2 g/m³
2013-05-03
Wind
Highest
17 mph
2026-05-27
Lowest
4 mph
2015-05-15
Gust
Highest
40 mph
1988-05-06
Lowest
13 mph
1980-05-01
Precip
Wettest
4.47 in
1998
Driest
0.04 in
2009
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