Weather on June 18
Fairfield, CA
55 Years of Data
Avg High
86°F
Avg Low
55°F
Warmest
2021
87°F avg
Coldest
1995
61°F avg
About This Date
June 18th in Fairfield, CA typically brings warm summer weather, with average highs around 86°F and lows near 55°F — a 31°F daily swing. Over 55 years of records, the warmest June 18th was in 2021 (87°F average), while the coldest was 1995 (61°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 18th dates historically. The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
Planning for June 18th in Fairfield, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 59° | 78° | — | — |
| 2024 | 87° | 58° | 72° | — | — |
| 2023 | 79° | 58° | 68° | — | — |
| 2022 | 77° | 48° | 63° | — | — |
| 2021warmest | 107° | 67° | 87° | — | — |
| 2020 | 97° | 59° | 78° | — | — |
| 2019 | 92° | 59° | 75° | — | — |
| 2018 | 84° | 56° | 70° | — | — |
| 2017 | 106° | 67° | 86° | — | — |
| 2016 | 84° | 55° | 70° | — | — |
| 2015 | 94° | 55° | 74° | — | — |
| 2014 | 91° | 57° | 74° | — | — |
| 2013 | 75° | 52° | 63° | — | — |
| 2012 | 78° | 55° | 67° | — | — |
| 2011 | 80° | 53° | 67° | — | — |
| 2010 | 85° | 52° | 68° | — | — |
| 2009 | 81° | 55° | 68° | — | — |
| 2008 | 94° | 51° | 72° | — | — |
| 2007 | 94° | 53° | 73° | — | — |
| 2006 | 95° | 59° | 77° | — | — |
| 2005 | 69° | 53° | 61° | 0.08" | — |
| 2004 | 80° | 56° | 68° | — | — |
| 2003 | 82° | 55° | 69° | — | — |
| 2002 | 88° | 62° | 75° | — | — |
| 2001 | 100° | 58° | 79° | — | — |
| 2000 | 82° | 57° | 70° | — | — |
| 1999 | 85° | 56° | 70° | — | — |
| 1998 | 88° | 56° | 72° | — | — |
| 1997 | 89° | 61° | 75° | — | — |
| 1996 | 83° | 54° | 68° | — | — |
| 1995coldest | 72° | 50° | 61° | — | — |
| 1994 | — | 54° | — | — | — |
| 1993 | 101° | 63° | 82° | — | — |
| 1992 | 83° | 55° | 69° | — | — |
| 1991 | 74° | 52° | 63° | — | — |
| 1990 | 76° | 55° | 65° | — | — |
| 1989 | 84° | 55° | 70° | — | — |
| 1988 | 98° | 58° | 78° | — | — |
| 1987 | 80° | 52° | 66° | — | — |
| 1986 | 86° | 46° | 66° | — | — |
| 1985 | 95° | 52° | 73° | — | — |
| 1984 | 102° | 54° | 78° | — | — |
| 1983 | 85° | 52° | 68° | — | — |
| 1982 | 82° | 48° | 65° | — | — |
| 1981 | 102° | 58° | 80° | — | — |
| 1980 | 95° | 51° | 73° | — | — |
| 1979 | 78° | 50° | 64° | — | — |
| 1978 | 87° | 54° | 70° | — | — |
| 1977 | 68° | 55° | 62° | — | — |
| 1976 | 85° | 54° | 69° | — | — |
| 1975 | 76° | 49° | 62° | — | — |
| 1974 | 74° | 55° | 64° | — | — |
| 1973 | 75° | 55° | 65° | — | — |
| 1972 | 91° | 53° | 72° | — | — |
| 1971 | 89° | 57° | 73° | — | — |
55 years of data from FAIRFIELD