Weather on September 7
Fontana, CA
55 Years of Data
Avg High
95°F
Avg Low
65°F
Warmest
2022
91°F avg
Coldest
2010
66°F avg
About This Date
September 7th in Fontana, CA typically brings hot fall weather, with average highs around 95°F and lows near 65°F — a 30°F daily swing. Over 55 years of records, the warmest September 7th was in 2022 (91°F average), while the coldest was 2010 (66°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 7th dates historically, with the wettest September 7th recording 1.47" of rain. The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
Planning for September 7th in Fontana, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 68° | 83° | — | — |
| 2024 | 106° | 77° | 91° | — | — |
| 2023 | 92° | 63° | 77° | — | — |
| 2022warmest | 105° | 77° | 91° | — | — |
| 2021 | 95° | 68° | 82° | — | — |
| 2020 | 94° | 72° | 83° | — | — |
| 2019 | 94° | 67° | 80° | — | — |
| 2018 | 98° | 63° | 80° | — | — |
| 2017 | 96° | 66° | 81° | — | — |
| 2016 | 88° | 63° | 75° | — | — |
| 2015 | 100° | 69° | 85° | — | — |
| 2014 | 101° | 72° | 86° | — | — |
| 2013 | 102° | 76° | 89° | — | — |
| 2012 | 92° | 69° | 80° | — | — |
| 2011 | 103° | 76° | 89° | — | — |
| 2010coldest | 72° | 60° | 66° | — | — |
| 2009 | 91° | 63° | 77° | — | — |
| 2008 | 96° | 66° | 81° | — | — |
| 2007 | 88° | 61° | 74° | — | — |
| 2006 | 93° | 64° | 79° | — | — |
| 2005 | 93° | 62° | 78° | — | — |
| 2004 | 102° | 65° | 83° | — | — |
| 2003 | 94° | 66° | 80° | — | — |
| 2002 | 84° | 60° | 72° | — | — |
| 2001 | 82° | 62° | 72° | — | — |
| 2000 | 96° | 63° | 79° | — | — |
| 1999 | 91° | 55° | 73° | — | — |
| 1998 | 91° | 65° | 78° | — | — |
| 1997 | 100° | 66° | 83° | — | — |
| 1996 | 97° | 66° | 81° | — | — |
| 1995 | 100° | 69° | 85° | — | — |
| 1994 | 97° | 64° | 80° | — | — |
| 1993 | 100° | 62° | 81° | — | — |
| 1992 | 90° | 57° | 73° | — | — |
| 1991 | 87° | 63° | 75° | — | — |
| 1990 | 102° | 65° | 83° | — | — |
| 1989 | 91° | 58° | 74° | — | — |
| 1988 | 98° | 66° | 82° | — | — |
| 1987 | 96° | 55° | 76° | — | — |
| 1986 | 98° | 57° | 78° | — | — |
| 1985 | 84° | 61° | 72° | — | — |
| 1984 | 105° | 66° | 86° | — | — |
| 1983 | 94° | 60° | 77° | — | — |
| 1982 | 98° | 60° | 79° | — | — |
| 1981 | 95° | 64° | 80° | — | — |
| 1980 | 89° | 58° | 73° | — | — |
| 1979 | 102° | 61° | 81° | — | — |
| 1978 | 79° | 56° | 67° | — | — |
| 1977 | 103° | 68° | 85° | — | — |
| 1976 | 97° | 63° | 80° | 1.47" | — |
| 1975 | 91° | 66° | 79° | — | — |
| 1974 | 96° | 64° | 80° | — | — |
| 1973 | 89° | 61° | 75° | — | — |
| 1972 | 85° | 69° | 77° | — | — |
| 1971 | 103° | 73° | 88° | — | — |
55 years of data from FONTANA KAISER