Weather on August 13
Fairfield, CA
55 Years of Data
Avg High
90°F
Avg Low
56°F
Warmest
1996
86°F avg
Coldest
1988
60°F avg
About This Date
August 13th in Fairfield, CA typically brings hot summer weather, with average highs around 90°F and lows near 56°F — a 34°F daily swing. Over 55 years of records, the warmest August 13th was in 1996 (86°F average), while the coldest was 1988 (60°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 13th dates historically. The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for August 13th in Fairfield, 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 | 83° | 58° | 70° | — | — |
| 2024 | 89° | 58° | 73° | — | — |
| 2023 | 96° | 53° | 75° | — | — |
| 2022 | 93° | 56° | 74° | — | — |
| 2021 | 87° | 59° | 73° | — | — |
| 2020 | 101° | 60° | 80° | — | — |
| 2019 | 98° | 60° | 79° | — | — |
| 2018 | 86° | 58° | 72° | — | — |
| 2017 | 83° | 58° | 70° | — | — |
| 2016 | 99° | 56° | 77° | — | — |
| 2015 | 85° | 60° | 72° | — | — |
| 2014 | 85° | 57° | 71° | — | — |
| 2013 | 95° | 55° | 75° | — | — |
| 2012 | 103° | 60° | 81° | — | — |
| 2011 | 92° | 56° | 74° | — | — |
| 2010 | 86° | 54° | 70° | — | — |
| 2009 | 98° | 58° | 78° | — | — |
| 2008 | 97° | 58° | 77° | — | — |
| 2007 | 84° | 55° | 70° | — | — |
| 2006 | 88° | 56° | 72° | — | — |
| 2005 | 96° | 54° | 75° | — | — |
| 2004 | 89° | 57° | 73° | — | — |
| 2003 | 93° | 56° | 74° | — | — |
| 2002 | 97° | 63° | 80° | — | — |
| 2001 | 85° | 54° | 69° | — | — |
| 2000 | 98° | 56° | 77° | — | — |
| 1999 | 83° | 53° | 68° | — | — |
| 1998 | 106° | 65° | 85° | — | — |
| 1997 | 89° | 56° | 72° | — | — |
| 1996warmest | 106° | 67° | 86° | — | — |
| 1995 | 100° | 62° | 81° | — | — |
| 1994 | 100° | 56° | 78° | — | — |
| 1993 | 78° | 58° | 68° | — | — |
| 1992 | 96° | 60° | 78° | — | — |
| 1991 | 95° | 59° | 77° | 0.03" | — |
| 1990 | 92° | 59° | 75° | — | — |
| 1989 | 97° | 55° | 76° | — | — |
| 1988coldest | 76° | 44° | 60° | — | — |
| 1987 | 69° | 54° | 61° | — | — |
| 1986 | 97° | 48° | 72° | — | — |
| 1985 | 84° | 51° | 68° | — | — |
| 1984 | 97° | 59° | 78° | — | — |
| 1983 | — | 61° | — | — | — |
| 1982 | 100° | 55° | 78° | — | — |
| 1981 | 85° | 58° | 71° | — | — |
| 1980 | 93° | 51° | 72° | — | — |
| 1979 | 96° | 54° | 75° | — | — |
| 1978 | 78° | 53° | 66° | — | — |
| 1977 | 82° | 54° | 68° | — | — |
| 1976 | 80° | 49° | 64° | — | — |
| 1975 | 77° | 54° | 65° | — | — |
| 1974 | 75° | 54° | 64° | — | — |
| 1973 | 80° | 53° | 67° | — | — |
| 1972 | 80° | 53° | 67° | — | — |
| 1971 | 91° | 55° | 73° | — | — |
55 years of data from FAIRFIELD