Weather on September 5
Fairfield, CA
55 Years of Data
Avg High
91°F
Avg Low
57°F
Warmest
2022
93°F avg
Coldest
1973
64°F avg
About This Date
September 5th in Fairfield, CA typically brings hot fall weather, with average highs around 91°F and lows near 57°F — a 34°F daily swing. Over 54 years of records, the warmest September 5th was in 2022 (93°F average), while the coldest was 1973 (64°F) — a 29°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for September 5th in Fairfield, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 58° | 70° | — | — |
| 2024 | 100° | 62° | 81° | — | — |
| 2023 | 84° | 56° | 70° | — | — |
| 2022warmest | 114° | 72° | 93° | — | — |
| 2021 | 99° | 55° | 77° | — | — |
| 2020 | 103° | 67° | 85° | — | — |
| 2019 | 84° | 60° | 72° | — | — |
| 2018 | 89° | 55° | 72° | — | — |
| 2017 | 90° | 73° | 81° | — | — |
| 2016 | 86° | 53° | 70° | — | — |
| 2015 | 86° | 52° | 69° | — | — |
| 2014 | 87° | 56° | 71° | — | — |
| 2013 | 96° | 57° | 77° | — | — |
| 2012 | 83° | 53° | 68° | — | — |
| 2011 | 85° | 54° | 69° | — | — |
| 2010 | 90° | 55° | 72° | — | — |
| 2009 | 101° | 54° | 77° | — | — |
| 2008 | 102° | 64° | 83° | — | — |
| 2007 | 83° | 58° | 70° | — | — |
| 2006 | 88° | 53° | 70° | — | — |
| 2005 | 80° | 54° | 67° | — | — |
| 2004 | 96° | 62° | 79° | — | — |
| 2003 | 86° | 56° | 71° | — | — |
| 2002 | 86° | 52° | 69° | — | — |
| 2001 | 86° | 57° | 72° | — | — |
| 2000 | 80° | 50° | 65° | — | — |
| 1999 | 88° | 54° | 71° | — | — |
| 1998 | 92° | 67° | 79° | — | — |
| 1997 | 99° | 65° | 82° | — | — |
| 1996 | 85° | 51° | 68° | — | — |
| 1995 | 95° | 56° | 75° | — | — |
| 1994 | 94° | 61° | 77° | — | — |
| 1993 | 78° | 56° | 67° | — | — |
| 1992 | 89° | 56° | 72° | — | — |
| 1991 | 94° | 61° | 77° | — | — |
| 1990 | 87° | 55° | 71° | — | — |
| 1989 | 87° | 55° | 71° | — | — |
| 1988 | 105° | 61° | 83° | — | — |
| 1987 | 77° | 55° | 66° | — | — |
| 1986 | 94° | 44° | 69° | — | — |
| 1985 | 80° | 52° | 66° | — | — |
| 1984 | 105° | 55° | 80° | — | — |
| 1983 | 102° | 59° | 81° | — | — |
| 1982 | 97° | 54° | 75° | — | — |
| 1981 | 94° | 54° | 74° | — | — |
| 1980 | 94° | 52° | 73° | — | — |
| 1979 | 89° | 56° | 72° | — | — |
| 1978 | 80° | 55° | 68° | — | — |
| 1977 | 97° | 54° | 75° | — | — |
| 1975 | 98° | 60° | 79° | — | — |
| 1974 | 91° | 57° | 74° | — | — |
| 1973coldest | 75° | 54° | 64° | — | — |
| 1972 | 87° | 56° | 71° | — | — |
| 1971 | 95° | 59° | 77° | — | — |
54 years of data from FAIRFIELD