Weather on April 18
Fairfield, CA
55 Years of Data
Avg High
72°F
Avg Low
47°F
Warmest
2014
72°F avg
Coldest
2004
48°F avg
About This Date
April 18th in Fairfield, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 47°F — a 25°F daily swing. Over 55 years of records, the warmest April 18th was in 2014 (72°F average), while the coldest was 2004 (48°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 13% of April 18th dates historically, with the wettest April 18th recording 1.32" of rain. The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for April 18th in Fairfield, CA? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 50° | 62° | — | — |
| 2024 | 79° | 54° | 66° | — | — |
| 2023 | 62° | 38° | 50° | 0.08" | — |
| 2022 | 68° | 40° | 54° | — | — |
| 2021 | 89° | 48° | 69° | — | — |
| 2020 | 66° | 53° | 60° | — | — |
| 2019 | 81° | 51° | 66° | — | — |
| 2018 | 62° | 45° | 53° | — | — |
| 2017 | 70° | 53° | 61° | 0.15" | — |
| 2016 | 87° | 51° | 69° | — | — |
| 2015 | 83° | 47° | 65° | — | — |
| 2014warmest | 76° | 69° | 72° | — | — |
| 2013 | 79° | 53° | 66° | — | — |
| 2012 | 73° | 51° | 62° | — | — |
| 2011 | 74° | 49° | 61° | — | — |
| 2010 | 73° | 48° | 61° | — | — |
| 2009 | 76° | 48° | 62° | — | — |
| 2008 | 83° | 47° | 65° | — | — |
| 2007 | 65° | 42° | 53° | — | — |
| 2006 | 72° | 42° | 57° | — | — |
| 2005 | 69° | 42° | 56° | — | — |
| 2004coldest | 56° | 40° | 48° | — | — |
| 2003 | 68° | 47° | 57° | — | — |
| 2002 | 65° | 42° | 53° | — | — |
| 2001 | 76° | 47° | 61° | — | — |
| 2000 | 63° | 44° | 53° | 1.12" | — |
| 1999 | 87° | 49° | 68° | — | — |
| 1998 | 73° | 43° | 58° | — | — |
| 1997 | 82° | 53° | 68° | — | — |
| 1996 | 64° | 40° | 52° | 0.48" | — |
| 1995 | 68° | 47° | 57° | — | — |
| 1994 | 81° | 50° | 65° | — | — |
| 1993 | 69° | 46° | 58° | — | — |
| 1992 | 77° | 51° | 64° | — | — |
| 1991 | 67° | 40° | 53° | — | — |
| 1990 | 70° | 51° | 60° | — | — |
| 1989 | 79° | 49° | 64° | — | — |
| 1988 | 67° | 48° | 57° | 1.32" | — |
| 1987 | 65° | 46° | 55° | — | — |
| 1986 | 70° | 40° | 55° | — | — |
| 1985 | 72° | 41° | 56° | — | — |
| 1984 | 69° | 47° | 58° | 0.48" | — |
| 1983 | 70° | 53° | 61° | 0.23" | — |
| 1982 | 76° | 53° | 64° | — | — |
| 1981 | 79° | 48° | 63° | — | — |
| 1980 | 72° | 45° | 58° | — | — |
| 1979 | 63° | 41° | 52° | — | — |
| 1978 | 66° | 44° | 55° | — | — |
| 1977 | 84° | 44° | 64° | — | — |
| 1976 | 68° | 43° | 55° | — | — |
| 1975 | 64° | 43° | 53° | — | — |
| 1974 | 61° | 44° | 52° | — | — |
| 1973 | 67° | 44° | 55° | — | — |
| 1972 | 64° | 45° | 54° | — | — |
| 1971 | 70° | 42° | 56° | — | — |
55 years of data from FAIRFIELD