Weather on October 15
Fairfield, CA
55 Years of Data
Avg High
80°F
Avg Low
52°F
Warmest
2020
79°F avg
Coldest
1981
57°F avg
About This Date
October 15th in Fairfield, CA typically brings warm fall weather, with average highs around 80°F and lows near 52°F — a 28°F daily swing. Over 55 years of records, the warmest October 15th was in 2020 (79°F average), while the coldest was 1981 (57°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 15% of October 15th dates historically, with the wettest October 15th recording 1.19" of rain. The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
Planning for October 15th 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 | 62° | 52° | 57° | 0.58" | — |
| 2024 | 83° | 57° | 70° | — | — |
| 2023 | 82° | 55° | 69° | — | — |
| 2022 | 75° | 52° | 63° | — | — |
| 2021 | 81° | 49° | 65° | — | — |
| 2020warmest | 95° | 62° | 79° | — | — |
| 2019 | 78° | 45° | 61° | — | — |
| 2018 | 84° | 59° | 72° | — | — |
| 2017 | 83° | 45° | 64° | — | — |
| 2016 | 69° | 53° | 61° | 1.09" | — |
| 2015 | 92° | 65° | 78° | — | — |
| 2014 | 71° | 52° | 61° | 0.3" | — |
| 2013 | 82° | 42° | 62° | — | — |
| 2012 | 84° | 53° | 69° | — | — |
| 2011 | 81° | 60° | 70° | — | — |
| 2010 | 92° | 62° | 77° | — | — |
| 2009 | 72° | 59° | 65° | — | — |
| 2008 | 85° | 47° | 66° | — | — |
| 2007 | 76° | 49° | 62° | — | — |
| 2006 | 69° | 49° | 59° | — | — |
| 2005 | 78° | 48° | 63° | 0.13" | — |
| 2004 | 82° | 55° | 69° | — | — |
| 2003 | 84° | 48° | 66° | — | — |
| 2002 | 85° | 52° | 68° | — | — |
| 2001 | 90° | 56° | 73° | — | — |
| 2000 | 78° | 48° | 63° | — | — |
| 1999 | 89° | 53° | 71° | — | — |
| 1998 | 75° | 49° | 62° | — | — |
| 1997 | 84° | 53° | 69° | — | — |
| 1996 | 83° | 54° | 68° | — | — |
| 1995 | 72° | 54° | 63° | — | — |
| 1994 | 77° | 56° | 66° | — | — |
| 1993 | 69° | 59° | 64° | 1.14" | — |
| 1992 | 82° | 53° | 68° | — | — |
| 1991 | 93° | 58° | 75° | — | — |
| 1990 | 81° | 54° | 67° | — | — |
| 1989 | 75° | 46° | 61° | — | — |
| 1988 | 84° | 53° | 69° | — | — |
| 1987 | 80° | 46° | 63° | — | — |
| 1986 | 84° | 51° | 68° | — | — |
| 1985 | 85° | 37° | 61° | — | — |
| 1984 | 80° | 50° | 65° | — | — |
| 1983 | 75° | 49° | 62° | — | — |
| 1982 | 86° | 50° | 68° | — | — |
| 1981coldest | 72° | 42° | 57° | — | — |
| 1980 | 72° | 47° | 59° | 0.03" | — |
| 1979 | 74° | 60° | 67° | 0.13" | — |
| 1978 | 92° | 54° | 73° | — | — |
| 1977 | 89° | 47° | 68° | — | — |
| 1976 | 80° | 47° | 63° | — | — |
| 1975 | 77° | 47° | 62° | — | — |
| 1974 | 86° | 48° | 67° | — | — |
| 1973 | 83° | 50° | 66° | — | — |
| 1972 | 62° | 53° | 58° | 1.19" | — |
| 1971 | 71° | 47° | 59° | — | — |
55 years of data from FAIRFIELD