Weather on May 4
Vacaville, CA
55 Years of Data
Avg High
78°F
Avg Low
49°F
Warmest
1990
80°F avg
Coldest
1975
52°F avg
About This Date
May 4th in Vacaville, CA typically brings pleasant spring weather, with average highs around 78°F and lows near 49°F — a 29°F daily swing. Over 55 years of records, the warmest May 4th was in 1990 (80°F average), while the coldest was 1975 (52°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 4th dates historically, with the wettest May 4th recording 1.32" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for May 4th in Vacaville, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 60° | 44° | 52° | — | — |
| 2024 | 59° | 46° | 53° | 1.32" | — |
| 2023 | 64° | 45° | 54° | — | — |
| 2022 | 91° | 48° | 70° | — | — |
| 2021 | 93° | 57° | 75° | — | — |
| 2020 | 84° | 39° | 62° | — | — |
| 2019 | 82° | 46° | 64° | — | — |
| 2018 | 85° | 49° | 67° | — | — |
| 2017 | 87° | 58° | 72° | — | — |
| 2016 | 77° | 59° | 68° | — | — |
| 2015 | 78° | 46° | 62° | — | — |
| 2014 | 72° | 48° | 60° | — | — |
| 2013 | 91° | 58° | 74° | — | — |
| 2012 | 72° | 51° | 61° | — | — |
| 2011 | 90° | 58° | 74° | — | — |
| 2010 | 80° | 49° | 64° | — | — |
| 2009 | 71° | 52° | 61° | 0.18" | — |
| 2008 | 71° | 51° | 61° | — | — |
| 2007 | 67° | 47° | 57° | 0.46" | — |
| 2006 | 74° | 49° | 61° | — | — |
| 2005 | 74° | 55° | 64° | 0.48" | — |
| 2004 | 82° | 55° | 69° | — | — |
| 2003 | 66° | 47° | 56° | — | — |
| 2002 | 80° | 46° | 63° | — | — |
| 2001 | 87° | 48° | 68° | — | — |
| 2000 | 78° | 54° | 66° | — | — |
| 1999 | 69° | 39° | 54° | — | — |
| 1998 | 69° | 51° | 60° | 0.13" | — |
| 1997 | 83° | 44° | 63° | — | — |
| 1996 | 80° | 45° | 62° | — | — |
| 1995 | 73° | 48° | 61° | 0.33" | — |
| 1994 | 75° | 53° | 64° | — | — |
| 1993 | 76° | 45° | 60° | — | — |
| 1992 | 97° | 55° | 76° | — | — |
| 1991 | 79° | 44° | 61° | — | — |
| 1990warmest | 96° | 65° | 80° | — | — |
| 1989 | 93° | 59° | 76° | — | — |
| 1988 | 66° | 46° | 56° | — | — |
| 1987 | 93° | 47° | 70° | — | — |
| 1986 | 67° | 48° | 57° | — | — |
| 1985 | 82° | 40° | 61° | — | — |
| 1984 | 72° | 51° | 61° | — | — |
| 1983 | 70° | 49° | 59° | — | — |
| 1982 | 86° | 52° | 69° | — | — |
| 1981 | 73° | 42° | 58° | — | — |
| 1980 | 84° | 46° | 65° | — | — |
| 1979 | 74° | 49° | 61° | — | — |
| 1978 | 81° | 48° | 64° | — | — |
| 1977 | 72° | 39° | 55° | — | — |
| 1976 | 78° | 49° | 63° | — | — |
| 1975coldest | 65° | 39° | 52° | — | — |
| 1974 | 80° | 45° | 62° | — | — |
| 1973 | 71° | 42° | 57° | — | — |
| 1972 | 83° | 47° | 65° | — | — |
| 1971 | 64° | 50° | 57° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS