Weather on December 19
Vacaville, CA
55 Years of Data
Avg High
54°F
Avg Low
37°F
Warmest
1999
64°F avg
Coldest
1985
32°F avg
About This Date
December 19th in Vacaville, CA typically brings cool winter weather, with average highs around 54°F and lows near 37°F. Over 55 years of records, the warmest December 19th was in 1999 (64°F average), while the coldest was 1985 (32°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 35% of December 19th dates historically, with the wettest December 19th recording 3.1" 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 December 19th in Vacaville, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 60° | 51° | 56° | 0.53" | — |
| 2024 | 49° | 36° | 42° | — | — |
| 2023 | 66° | 54° | 60° | 1.22" | — |
| 2022 | 43° | 40° | 41° | — | — |
| 2021 | 46° | 39° | 43° | — | — |
| 2020 | 59° | 31° | 45° | — | — |
| 2019 | 58° | 41° | 49° | — | — |
| 2018 | 65° | 39° | 52° | — | — |
| 2017 | 60° | 33° | 47° | — | — |
| 2016 | 55° | 26° | 41° | — | — |
| 2015 | 59° | 35° | 47° | 0.05" | — |
| 2014 | 53° | 50° | 52° | 1.96" | — |
| 2013 | 59° | 32° | 46° | — | — |
| 2012 | 50° | 26° | 38° | — | — |
| 2011 | 65° | 31° | 48° | — | — |
| 2010 | 56° | 45° | 50° | 2.77" | — |
| 2009 | 51° | 47° | 49° | — | — |
| 2008 | 56° | 36° | 46° | 0.41" | — |
| 2007 | 55° | 46° | 51° | 0.48" | — |
| 2006 | 51° | 27° | 39° | — | — |
| 2005 | 60° | 45° | 52° | 0.36" | — |
| 2004 | 45° | 37° | 41° | 0.03" | — |
| 2003 | 50° | 38° | 44° | 0.86" | — |
| 2002 | 47° | 36° | 41° | 1.55" | — |
| 2001 | 47° | 39° | 43° | 0.28" | — |
| 2000 | 62° | 34° | 48° | — | — |
| 1999warmest | 75° | 54° | 64° | — | — |
| 1998 | 52° | 31° | 41° | — | — |
| 1997 | 62° | 44° | 53° | — | — |
| 1996 | 48° | 26° | 37° | — | — |
| 1995 | 60° | 41° | 51° | 0.05" | — |
| 1994 | 49° | 34° | 41° | 0.05" | — |
| 1993 | 48° | 26° | 37° | — | — |
| 1992 | 47° | 29° | 38° | — | — |
| 1991 | 55° | 41° | 48° | — | — |
| 1990 | 52° | 37° | 44° | — | — |
| 1989 | 42° | 32° | 37° | — | — |
| 1988 | 49° | 41° | 45° | 2.18" | — |
| 1987 | 59° | 38° | 48° | — | — |
| 1986 | 51° | 38° | 44° | 1.07" | — |
| 1985coldest | 39° | 25° | 32° | — | — |
| 1984 | 53° | 35° | 44° | — | — |
| 1983 | 53° | 45° | 49° | — | — |
| 1982 | 52° | 31° | 41° | — | — |
| 1981 | 60° | 48° | 54° | 3.1" | — |
| 1980 | 60° | 35° | 48° | — | — |
| 1979 | 52° | 26° | 39° | 0.86" | — |
| 1978 | 50° | 28° | 39° | — | — |
| 1977 | 56° | 37° | 46° | — | — |
| 1976 | 65° | 29° | 47° | — | — |
| 1975 | 60° | 29° | 44° | — | — |
| 1974 | 51° | 29° | 40° | — | — |
| 1973 | 50° | 35° | 43° | — | — |
| 1972 | 59° | 42° | 51° | 0.25" | — |
| 1971 | 55° | 29° | 42° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS