Weather on December 1
Vacaville, CA
55 Years of Data
Avg High
60°F
Avg Low
38°F
Warmest
1975
59°F avg
Coldest
1991
38°F avg
About This Date
December 1st in Vacaville, CA typically brings mild winter weather, with average highs around 60°F and lows near 38°F. Over 55 years of records, the warmest December 1st was in 1975 (59°F average), while the coldest was 1991 (38°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 22% of December 1st dates historically, with the wettest December 1st recording 8.97" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 1st in Vacaville, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 52° | 35° | 43° | — | — |
| 2024 | 66° | 39° | 53° | — | — |
| 2023 | 64° | 34° | 49° | — | — |
| 2022 | 54° | 34° | 44° | 1.24" | — |
| 2021 | 70° | 39° | 54° | — | — |
| 2020 | 68° | 34° | 51° | — | — |
| 2019 | 52° | 46° | 49° | 8.97" | — |
| 2018 | 61° | 45° | 53° | 0.94" | — |
| 2017 | 63° | 35° | 49° | — | — |
| 2016 | 63° | 35° | 49° | — | — |
| 2015 | 61° | 30° | 46° | — | — |
| 2014 | 65° | 52° | 58° | — | — |
| 2013 | 68° | 35° | 52° | — | — |
| 2012 | 62° | 53° | 58° | 2.97" | — |
| 2011 | 65° | 51° | 58° | — | — |
| 2010 | 58° | 31° | 45° | — | — |
| 2009 | 67° | 39° | 53° | — | — |
| 2008 | 60° | 41° | 51° | — | — |
| 2007 | 56° | 29° | 42° | — | — |
| 2006 | 66° | 32° | 49° | — | — |
| 2005 | 61° | 42° | 51° | 2.82" | — |
| 2004 | 57° | 31° | 44° | — | — |
| 2003 | 53° | 50° | 52° | 1.02" | — |
| 2002 | 63° | 38° | 50° | — | — |
| 2001 | 50° | 48° | 49° | 4.52" | — |
| 2000 | 60° | 35° | 48° | — | — |
| 1999 | 59° | 39° | 49° | — | — |
| 1998 | 61° | 36° | 48° | — | — |
| 1997 | 63° | 41° | 52° | — | — |
| 1996 | 62° | 43° | 52° | 0.51" | — |
| 1995 | 69° | 47° | 58° | — | — |
| 1994 | 54° | 33° | 43° | 0.1" | — |
| 1993 | 60° | 35° | 48° | — | — |
| 1992 | 65° | 32° | 48° | — | — |
| 1991coldest | 65° | 12° | 38° | — | — |
| 1990 | 62° | 34° | 48° | — | — |
| 1989 | 64° | 41° | 53° | — | — |
| 1988 | 62° | 31° | 46° | — | — |
| 1987 | 58° | 47° | 52° | 0.51" | — |
| 1986 | 64° | 31° | 47° | — | — |
| 1985 | 53° | 35° | 44° | — | — |
| 1984 | 57° | 43° | 50° | — | — |
| 1983 | 59° | 41° | 50° | — | — |
| 1982 | 59° | 47° | 53° | — | — |
| 1981 | 59° | 36° | 47° | — | — |
| 1980 | 56° | 33° | 44° | — | — |
| 1979 | 55° | 35° | 45° | — | — |
| 1978 | 60° | 46° | 53° | 0.1" | — |
| 1977 | 69° | 44° | 57° | — | — |
| 1976 | 64° | 30° | 47° | — | — |
| 1975warmest | 64° | 54° | 59° | — | — |
| 1974 | 59° | 31° | 45° | — | — |
| 1973 | 54° | 47° | 50° | 3.33" | — |
| 1972 | 44° | 39° | 42° | — | — |
| 1971 | 56° | 33° | 44° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS