Weather on October 18
Vacaville, CA
55 Years of Data
Avg High
80°F
Avg Low
48°F
Warmest
1988
74°F avg
Coldest
1971
50°F avg
About This Date
October 18th in Vacaville, CA typically brings warm fall weather, with average highs around 80°F and lows near 48°F — a 32°F daily swing. Over 55 years of records, the warmest October 18th was in 1988 (74°F average), while the coldest was 1971 (50°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 4% of October 18th dates historically, with the wettest October 18th recording 1.98" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 50° | 64° | — | — |
| 2024 | 79° | 58° | 68° | — | — |
| 2023 | 90° | 49° | 69° | — | — |
| 2022 | 88° | 54° | 71° | — | — |
| 2021 | 66° | 43° | 54° | — | — |
| 2020 | 94° | 53° | 73° | — | — |
| 2019 | 76° | 45° | 60° | — | — |
| 2018 | 84° | 41° | 63° | — | — |
| 2017 | 81° | 44° | 62° | — | — |
| 2016 | 75° | 47° | 61° | — | — |
| 2015 | 76° | 50° | 63° | 1.98" | — |
| 2014 | 81° | 52° | 66° | — | — |
| 2013 | 83° | 43° | 63° | — | — |
| 2012 | 89° | 52° | 70° | — | — |
| 2011 | 87° | 50° | 69° | — | — |
| 2010 | 74° | 52° | 63° | — | — |
| 2009 | 73° | 57° | 65° | — | — |
| 2008 | 85° | 55° | 70° | — | — |
| 2007 | 71° | 50° | 61° | — | — |
| 2006 | 78° | 49° | 63° | — | — |
| 2005 | 72° | 61° | 66° | — | — |
| 2004 | 66° | 45° | 55° | — | — |
| 2003 | 86° | 48° | 67° | — | — |
| 2002 | 71° | 43° | 57° | — | — |
| 2001 | 88° | 49° | 68° | — | — |
| 2000 | 82° | 49° | 65° | — | — |
| 1999 | 79° | 45° | 62° | — | — |
| 1998 | 81° | 41° | 61° | — | — |
| 1997 | 88° | 52° | 70° | — | — |
| 1996 | 76° | 52° | 64° | — | — |
| 1995 | 90° | 47° | 68° | — | — |
| 1994 | 77° | 46° | 62° | — | — |
| 1993 | 78° | 45° | 61° | — | — |
| 1992 | 82° | 49° | 65° | — | — |
| 1991 | 93° | 51° | 72° | — | — |
| 1990 | 70° | 51° | 60° | — | — |
| 1989 | 85° | 54° | 69° | — | — |
| 1988warmest | 93° | 55° | 74° | — | — |
| 1987 | 86° | 45° | 65° | — | — |
| 1986 | 75° | 48° | 62° | — | — |
| 1985 | 77° | 46° | 62° | — | — |
| 1984 | 60° | 39° | 50° | 0.23" | — |
| 1983 | 82° | 44° | 63° | — | — |
| 1982 | 76° | 44° | 60° | — | — |
| 1981 | 84° | 44° | 64° | — | — |
| 1980 | 72° | 39° | 55° | — | — |
| 1979 | 75° | 55° | 65° | — | — |
| 1978 | 82° | 49° | 65° | — | — |
| 1977 | 76° | 46° | 61° | — | — |
| 1976 | 85° | 45° | 65° | — | — |
| 1975 | 77° | 48° | 63° | — | — |
| 1974 | 90° | 45° | 67° | — | — |
| 1973 | 83° | 45° | 64° | — | — |
| 1972 | 74° | 52° | 63° | — | — |
| 1971coldest | 65° | 35° | 50° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS