Weather on June 18
Vacaville, CA
55 Years of Data
Avg High
90°F
Avg Low
56°F
Warmest
2017
96°F avg
Coldest
2022
61°F avg
About This Date
June 18th in Vacaville, 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 June 18th was in 2017 (96°F average), while the coldest was 2022 (61°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 18th dates historically. 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 June 18th in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 101° | 58° | 79° | — | — |
| 2024 | 91° | 61° | 76° | — | — |
| 2023 | 87° | 58° | 72° | — | — |
| 2022coldest | 76° | 46° | 61° | 0.43" | — |
| 2021 | 109° | 63° | 86° | — | — |
| 2020 | 98° | 52° | 75° | — | — |
| 2019 | 100° | 63° | 81° | — | — |
| 2018 | 88° | 56° | 72° | — | — |
| 2017warmest | 107° | 85° | 96° | — | — |
| 2016 | 85° | 54° | 69° | — | — |
| 2015 | 95° | 57° | 76° | — | — |
| 2014 | 93° | 54° | 73° | — | — |
| 2013 | 80° | 57° | 69° | — | — |
| 2012 | 85° | 56° | 70° | — | — |
| 2011 | 86° | 55° | 71° | — | — |
| 2010 | 76° | 55° | 65° | — | — |
| 2009 | 98° | 62° | 80° | — | — |
| 2008 | 98° | 56° | 77° | — | — |
| 2007 | 98° | 59° | 79° | — | — |
| 2006 | 93° | 59° | 76° | — | — |
| 2005 | 74° | 56° | 65° | — | — |
| 2004 | 85° | 53° | 69° | — | — |
| 2003 | 89° | 59° | 74° | — | — |
| 2002 | 92° | 64° | 78° | — | — |
| 2001 | 100° | 60° | 80° | — | — |
| 2000 | 80° | 59° | 70° | — | — |
| 1999 | 90° | 57° | 73° | — | — |
| 1998 | 87° | 56° | 71° | — | — |
| 1997 | 97° | 61° | 79° | — | — |
| 1996 | 89° | 56° | 72° | — | — |
| 1995 | 75° | 53° | 64° | — | — |
| 1994 | 89° | 49° | 69° | — | — |
| 1993 | 102° | 64° | 83° | — | — |
| 1992 | 90° | 58° | 74° | — | — |
| 1991 | 88° | 51° | 69° | — | — |
| 1990 | 85° | 52° | 68° | — | — |
| 1989 | 84° | 55° | 70° | — | — |
| 1988 | 98° | 58° | 78° | — | — |
| 1987 | 84° | 49° | 66° | — | — |
| 1986 | 86° | 54° | 70° | — | — |
| 1985 | 98° | 55° | 77° | — | — |
| 1984 | 97° | 54° | 75° | — | — |
| 1983 | 82° | 47° | 64° | — | — |
| 1982 | 78° | 56° | 67° | — | — |
| 1981 | 102° | 58° | 80° | — | — |
| 1980 | 91° | 50° | 71° | — | — |
| 1979 | 80° | 49° | 64° | — | — |
| 1978 | 87° | 54° | 70° | — | — |
| 1977 | 82° | 48° | 65° | — | — |
| 1976 | 95° | 60° | 78° | — | — |
| 1975 | 81° | 49° | 65° | — | — |
| 1974 | 77° | 53° | 65° | — | — |
| 1973 | 91° | 48° | 70° | — | — |
| 1972 | 95° | 55° | 75° | — | — |
| 1971 | 93° | 59° | 76° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS