Weather on September 6
Fontana, CA
55 Years of Data
Avg High
95°F
Avg Low
65°F
Warmest
2020
99°F avg
Coldest
1985
68°F avg
About This Date
September 6th 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 6th was in 2020 (99°F average), while the coldest was 1985 (68°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 6th dates historically, with the wettest September 6th recording 2.03" of rain. The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
Planning for September 6th in Fontana, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 64° | 80° | — | — |
| 2024 | 114° | 83° | 98° | — | — |
| 2023 | 87° | 66° | 77° | — | — |
| 2022 | 104° | 75° | 90° | — | — |
| 2021 | 97° | 68° | 82° | — | — |
| 2020warmest | 117° | 82° | 99° | — | — |
| 2019 | 98° | 71° | 85° | — | — |
| 2018 | 89° | 62° | 76° | — | — |
| 2017 | 94° | 70° | 82° | — | — |
| 2016 | 90° | 58° | 74° | — | — |
| 2015 | 96° | 64° | 80° | — | — |
| 2014 | 101° | 68° | 84° | — | — |
| 2013 | 103° | 76° | 89° | — | — |
| 2012 | 93° | 67° | 80° | — | — |
| 2011 | 101° | 70° | 85° | — | — |
| 2010 | 83° | 59° | 71° | — | — |
| 2009 | 93° | 63° | 78° | — | — |
| 2008 | 97° | 68° | 82° | — | — |
| 2007 | 86° | 61° | 73° | — | — |
| 2006 | 101° | 70° | 85° | — | — |
| 2005 | 94° | 60° | 77° | — | — |
| 2004 | 98° | 65° | 81° | — | — |
| 2003 | 96° | 70° | 83° | — | — |
| 2002 | 87° | 68° | 78° | — | — |
| 2001 | 82° | 63° | 72° | — | — |
| 2000 | 95° | 60° | 78° | — | — |
| 1999 | 86° | 58° | 72° | — | — |
| 1998 | 89° | 68° | 79° | — | — |
| 1997 | 100° | 69° | 85° | — | — |
| 1996 | 95° | 65° | 80° | — | — |
| 1995 | 99° | 69° | 84° | — | — |
| 1994 | 100° | 65° | 82° | — | — |
| 1993 | 93° | 62° | 78° | — | — |
| 1992 | 91° | 56° | 73° | — | — |
| 1991 | 87° | 64° | 76° | — | — |
| 1990 | 99° | 69° | 84° | — | — |
| 1989 | 99° | 62° | 80° | — | — |
| 1988 | 105° | 68° | 87° | — | — |
| 1987 | 91° | 55° | 73° | — | — |
| 1986 | 101° | 60° | 80° | — | — |
| 1985coldest | 81° | 56° | 68° | — | — |
| 1984 | 106° | 69° | 87° | — | — |
| 1983 | 99° | 57° | 78° | — | — |
| 1982 | 101° | 62° | 81° | — | — |
| 1981 | 89° | 67° | 78° | — | — |
| 1980 | 91° | 59° | 75° | — | — |
| 1979 | 98° | 55° | 77° | — | — |
| 1978 | 76° | 65° | 70° | 2.03" | — |
| 1977 | 101° | 61° | 81° | — | — |
| 1976 | 88° | 64° | 76° | — | — |
| 1975 | 95° | 65° | 80° | — | — |
| 1974 | 97° | 71° | 84° | — | — |
| 1973 | 91° | 55° | 73° | — | — |
| 1972 | 90° | 70° | 80° | 0.43" | — |
| 1971 | 99° | 69° | 84° | — | — |
55 years of data from FONTANA KAISER