Weather on May 9
Vacaville, CA
55 Years of Data
About This Date
May 9th in Vacaville, CA typically brings warm spring weather, with average highs around 80°F and lows near 50°F — a 30°F daily swing. Over 56 years of records, the warmest May 9th was in 2001 (76°F average), while the coldest was 2003 (52°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 9th dates historically, with the wettest May 9th recording 1.02" of rain. The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
Planning for May 9th in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 90° | 54° | 72° | — | — |
| 2025 | 94° | 49° | 71° | — | — |
| 2024 | 86° | 55° | 71° | — | — |
| 2023 | 74° | 43° | 58° | — | — |
| 2022 | 68° | 44° | 56° | — | — |
| 2021 | 90° | 63° | 76° | — | — |
| 2020 | 89° | 53° | 71° | — | — |
| 2019 | 76° | 53° | 64° | — | — |
| 2018 | 81° | 56° | 68° | — | — |
| 2017 | 88° | 51° | 69° | — | — |
| 2016 | 77° | 53° | 65° | — | — |
| 2015 | 81° | 50° | 65° | — | — |
| 2014 | 74° | 54° | 64° | — | — |
| 2013 | 80° | 52° | 66° | — | — |
| 2012 | 88° | 51° | 69° | — | — |
| 2011 | 73° | 48° | 61° | — | — |
| 2010 | 66° | 49° | 57° | 0.03" | — |
| 2009 | 86° | 55° | 71° | — | — |
| 2008 | 78° | 49° | 63° | — | — |
| 2007 | 88° | 56° | 72° | — | — |
| 2006 | 88° | 50° | 69° | — | — |
| 2005 | 65° | 49° | 57° | 0.94" | — |
| 2004 | 81° | 49° | 65° | — | — |
| 2003coldest | 67° | 38° | 52° | — | — |
| 2002 | 78° | 47° | 62° | — | — |
| 2001warmest | 95° | 57° | 76° | — | — |
| 2000 | 72° | 50° | 61° | — | — |
| 1999 | 74° | 50° | 62° | — | — |
| 1998 | 64° | 44° | 54° | 0.56" | — |
| 1997 | 92° | 52° | 72° | — | — |
| 1996 | 81° | 43° | 62° | — | — |
| 1995 | 70° | 48° | 59° | 0.2" | — |
| 1994 | 80° | 50° | 65° | — | — |
| 1993 | 89° | 49° | 69° | — | — |
| 1992 | 92° | 59° | 75° | — | — |
| 1991 | 72° | — | — | — | — |
| 1990 | 85° | 50° | 67° | — | — |
| 1989 | 81° | 53° | 67° | — | — |
| 1988 | 74° | 49° | 61° | — | — |
| 1987 | 92° | 57° | 74° | — | — |
| 1986 | 84° | 62° | 73° | — | — |
| 1985 | 79° | 41° | 60° | — | — |
| 1984 | 86° | 49° | 67° | — | — |
| 1983 | 70° | 38° | 54° | — | — |
| 1982 | 78° | 45° | 61° | — | — |
| 1981 | 85° | 54° | 69° | — | — |
| 1980 | 67° | 49° | 58° | 1.02" | — |
| 1979 | 74° | 51° | 62° | — | — |
| 1978 | 84° | 53° | 69° | — | — |
| 1977 | 64° | 48° | 56° | 0.03" | — |
| 1976 | 86° | 47° | 66° | — | — |
| 1975 | 78° | 39° | 59° | — | — |
| 1974 | 85° | 49° | 67° | — | — |
| 1973 | 88° | 40° | 64° | — | — |
| 1972 | 76° | 39° | 57° | — | — |
| 1971 | 76° | 46° | 61° | — | — |
Vacaville, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Vacaville, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Vacaville, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Vacaville, CA
Vacaville, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.