Weather on October 17
Fairfield, CA
55 Years of Data
Avg High
78°F
Avg Low
50°F
Warmest
2020
77°F avg
Coldest
1984
44°F avg
About This Date
October 17th in Fairfield, CA typically brings pleasant fall weather, with average highs around 78°F and lows near 50°F — a 28°F daily swing. Over 55 years of records, the warmest October 17th was in 2020 (77°F average), while the coldest was 1984 (44°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 9% of October 17th dates historically, with the wettest October 17th recording 2.67" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 17th in Fairfield, CA? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 49° | 61° | — | — |
| 2024 | 74° | 53° | 63° | — | — |
| 2023 | 84° | 52° | 68° | — | — |
| 2022 | 77° | 49° | 63° | — | — |
| 2021 | 78° | 54° | 66° | — | — |
| 2020warmest | 95° | 59° | 77° | — | — |
| 2019 | 74° | 53° | 63° | — | — |
| 2018 | 81° | 47° | 64° | — | — |
| 2017 | 82° | 53° | 68° | — | — |
| 2016 | 70° | 53° | 61° | 0.79" | — |
| 2015 | 86° | 60° | 73° | — | — |
| 2014 | 73° | 52° | 62° | — | — |
| 2013 | 81° | 51° | 66° | — | — |
| 2012 | 90° | 55° | 72° | — | — |
| 2011 | 90° | 55° | 72° | — | — |
| 2010 | 75° | 53° | 64° | — | — |
| 2009 | 80° | 59° | 70° | — | — |
| 2008 | 89° | 49° | 69° | — | — |
| 2007 | 60° | 48° | 54° | 1.04" | — |
| 2006 | 70° | 52° | 61° | — | — |
| 2005 | 85° | 50° | 67° | — | — |
| 2004 | 65° | 57° | 61° | — | — |
| 2003 | 82° | 50° | 66° | — | — |
| 2002 | 68° | 48° | 58° | — | — |
| 2001 | 85° | 55° | 70° | — | — |
| 2000 | 79° | 47° | 63° | — | — |
| 1999 | 83° | 54° | 68° | — | — |
| 1998 | 75° | 52° | 63° | — | — |
| 1997 | 87° | 55° | 71° | — | — |
| 1996 | 75° | 49° | 62° | — | — |
| 1995 | 83° | 51° | 67° | — | — |
| 1994 | 75° | 47° | 61° | — | — |
| 1993 | 73° | 50° | 62° | — | — |
| 1992 | 81° | 51° | 66° | — | — |
| 1991 | 80° | 55° | 68° | — | — |
| 1990 | 82° | 50° | 66° | — | — |
| 1989 | 84° | 47° | 65° | — | — |
| 1988 | 92° | 57° | 74° | — | — |
| 1987 | 86° | 48° | 67° | — | — |
| 1986 | 69° | 51° | 60° | 0.46" | — |
| 1985 | 83° | 39° | 61° | — | — |
| 1984coldest | 56° | 33° | 44° | 2.67" | — |
| 1983 | 79° | 46° | 62° | — | — |
| 1982 | 79° | 49° | 64° | — | — |
| 1981 | 76° | 45° | 60° | — | — |
| 1980 | 76° | 37° | 56° | — | — |
| 1979 | 85° | 53° | 69° | — | — |
| 1978 | 75° | 52° | 63° | — | — |
| 1977 | 76° | 50° | 63° | — | — |
| 1976 | 84° | 47° | 65° | — | — |
| 1975 | 79° | 47° | 63° | — | — |
| 1974 | 88° | 49° | 68° | — | — |
| 1973 | 85° | 49° | 67° | — | — |
| 1972 | 63° | 56° | 59° | 0.76" | — |
| 1971 | 61° | 37° | 49° | — | — |
55 years of data from FAIRFIELD