Weather in Fontana, California, United States in May
In an average May, Fontana sees a daily high around 80°F and a low around 51°F, based on 1981–2026 of local climate records.
| Average high | 80°F |
|---|---|
| Typical high range | 68°F to 91°F |
| Average low | 51°F |
| Typical low range | 45°F to 59°F |
| Average daily precipitation | 0.00 in |
May records
The most extreme May on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
103°F
2003-05-28
Lowest
55°F
1998-05-12
Low
Highest
71°F
2013-05-13
Lowest
36°F
1991-05-02
Feels-like
Highest
110°F
2003-05-28
Lowest
27°F
1991-05-02
Humidity
Highest
12.9 g/m³
1992-05-09
Lowest
2.5 g/m³
2013-05-02
Wind
Highest
24 mph
2013-05-02
Lowest
5 mph
2019-05-11
Precip
Wettest
2.76 in
1998
Driest
0.00 in
2007
See Fontana's live weather grade →
Visiting Fontana in May? See how its comfort stacks up against where you live.
Compare Fontana with your city →