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Fontana, CA Weather on April 11
April 11th in Fontana, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 50°F — a 26°F daily swing. Over 55 years of records, the warmest April 11th was in 1988 (75°F average), while the coldest was 1999 (49°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 13% of April 11th dates historically, with the wettest April 11th recording 1.52" of rain. The last decade has been 5.2°F warmer on this date compared to 20-30 years ago.
What to Expect on April 11
Planning for April 11th in Fontana, CA? Great weather for outdoor activities.
April 11 Weather Records for Fontana
- •The all-time record high for April 11th in Fontana, CA is 95°F, set in 1988.
- •The coldest April 11th on record dropped to 39°F in 1979.
- •Temperatures have reached 90°F or higher on April 11th in 3 of the last 55 years.
- •Last year (1971), April 11th was 6°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest April 11 ever in Fontana?
The warmest April 11 in Fontana, CA reached 95°F in 1988. That is 19°F above the long-term average high of 76°F.
What was the coldest April 11 ever in Fontana?
The coldest April 11 in Fontana, CA dropped to 39°F in 1979. That is 11°F below the long-term average low of 50°F.
What is the average temperature on April 11 in Fontana?
On April 11, Fontana averages a high of 76°F and a low of 50°F based on 55 years of NOAA weather observations from FONTANA KAISER.
How many years of weather data are available for April 11 in Fontana?
We have 55 years of weather records for April 11 in Fontana, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 11 Weather History in Fontana
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 89°F | 58°F | 0" | -- |
| 2024 | 88°F | 54°F | 0" | -- |
| 2023 | 79°F | 50°F | 0" | -- |
| 2022 | 66°F | 52°F | 0.08" | -- |
| 2021 | 79°F | 54°F | 0" | -- |
| 2020 | 69°F | 47°F | 0" | -- |
| 2019 | 77°F | 52°F | 0" | -- |
| 2018 | 84°F | 56°F | 0" | -- |
| 2017 | 79°F | 51°F | 0" | -- |
| 2016 | 76°F | 55°F | 0" | -- |
| 2015 | 76°F | 50°F | 0" | -- |
| 2014 | 86°F | 55°F | 0" | -- |
| 2013 | 81°F | 52°F | 0" | -- |
| 2012 | 60°F | 49°F | 0.86" | -- |
| 2011 | 76°F | 49°F | 0" | -- |
| 2010 | 60°F | 50°F | 0.23" | -- |
| 2009 | 62°F | 48°F | 0" | -- |
| 2008 | 90°F | 51°F | 0" | -- |
| 2007 | 72°F | 51°F | 0" | -- |
| 2006 | 69°F | 50°F | 0" | -- |
| 2005 | 79°F | 48°F | 0" | -- |
| 2004 | 87°F | 52°F | 0" | -- |
| 2003 | 73°F | 52°F | 0" | -- |
| 2002 | 81°F | 50°F | 0" | -- |
| 2001 | 55°F | 45°F | 0.05" | -- |
| 2000 | 88°F | 51°F | 0" | -- |
| 1999 | 56°F | 42°F | 1.52" | -- |
| 1998 | 64°F | 44°F | 0.41" | -- |
| 1997 | 74°F | 46°F | 0" | -- |
| 1996 | 75°F | 49°F | 0" | -- |
| 1995 | 83°F | 46°F | 0" | -- |
| 1994 | 84°F | 45°F | 0" | -- |
| 1993 | 80°F | 50°F | 0" | -- |
| 1992 | 75°F | 55°F | 0" | -- |
| 1991 | 74°F | 45°F | 0" | -- |
| 1990 | 91°F | 53°F | 0" | -- |
| 1989 | 79°F | 58°F | 0" | -- |
| 1988 | 95°F | 55°F | 0" | -- |
| 1987 | 83°F | 53°F | 0" | -- |
| 1986 | 74°F | 49°F | 0" | -- |
| 1985 | 83°F | 46°F | 0" | -- |
| 1984 | 79°F | 49°F | 0" | -- |
| 1983 | 59°F | 45°F | 0.28" | -- |
| 1982 | 69°F | 59°F | 0" | -- |
| 1981 | 71°F | 52°F | 0" | -- |
| 1980 | 79°F | 45°F | 0" | -- |
| 1979 | 68°F | 39°F | 0" | -- |
| 1978 | 74°F | 43°F | 0" | -- |
| 1977 | 65°F | 44°F | 0" | -- |
| 1976 | 70°F | 46°F | 0" | -- |
| 1975 | 59°F | 48°F | 0" | -- |
| 1974 | 79°F | 44°F | 0" | -- |
| 1973 | 76°F | 48°F | 0" | -- |
| 1972 | 73°F | 52°F | 0" | -- |
| 1971 | 82°F | 51°F | 0" | -- |
Based on 55 years of data from NOAA station: FONTANA KAISER
Monthly Climate Averages
Historical temperature and precipitation averages for Fontana, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.