Weather on December 30
Vacaville, CA
55 Years of Data
Avg High
55°F
Avg Low
37°F
Warmest
2002
59°F avg
Coldest
1978
35°F avg
About This Date
December 30th in Vacaville, CA typically brings cool winter weather, with average highs around 55°F and lows near 37°F. Over 55 years of records, the warmest December 30th was in 2002 (59°F average), while the coldest was 1978 (35°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 36% of December 30th dates historically, with the wettest December 30th recording 5.69" of rain. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for December 30th in Vacaville, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 44° | 36° | 40° | — | — |
| 2024 | 61° | 38° | 49° | — | — |
| 2023 | 62° | 44° | 53° | 1.35" | — |
| 2022 | 63° | 51° | 57° | 1.4" | — |
| 2021 | 54° | 36° | 45° | — | — |
| 2020 | 58° | 28° | 43° | 0.1" | — |
| 2019 | 66° | 36° | 51° | — | — |
| 2018 | 59° | 31° | 45° | — | — |
| 2017 | 64° | 32° | 48° | — | — |
| 2016 | 61° | 32° | 46° | — | — |
| 2015 | 49° | 27° | 38° | — | — |
| 2014 | 55° | 39° | 47° | — | — |
| 2013 | 63° | 28° | 46° | — | — |
| 2012 | 55° | 32° | 44° | — | — |
| 2011 | 60° | 36° | 48° | — | — |
| 2010 | 54° | 32° | 43° | — | — |
| 2009 | 54° | 45° | 49° | 0.03" | — |
| 2008 | 58° | 38° | 48° | — | — |
| 2007 | 55° | 41° | 48° | — | — |
| 2006 | 54° | 29° | 41° | — | — |
| 2005 | 58° | 49° | 53° | 5.69" | — |
| 2004 | 55° | 47° | 51° | 1.85" | — |
| 2003 | 52° | 40° | 46° | — | — |
| 2002warmest | 66° | 52° | 59° | 0.08" | — |
| 2001 | 55° | 51° | 53° | 2.18" | — |
| 2000 | 62° | 29° | 45° | — | — |
| 1999 | 62° | 29° | 45° | — | — |
| 1998 | 52° | 30° | 41° | 0.1" | — |
| 1997 | 58° | 36° | 47° | — | — |
| 1996 | 59° | 51° | 55° | 1.88" | — |
| 1995 | 55° | 48° | 52° | 0.08" | — |
| 1994 | 52° | 31° | 41° | — | — |
| 1993 | 52° | 32° | 42° | — | — |
| 1992 | 54° | 30° | 42° | 0.89" | — |
| 1991 | 54° | 45° | 49° | 0.48" | — |
| 1990 | 47° | 28° | 37° | — | — |
| 1989 | 56° | 33° | 44° | — | — |
| 1988 | 42° | 32° | 37° | 0.3" | — |
| 1987 | 45° | 33° | 39° | 0.1" | — |
| 1986 | 46° | 32° | 39° | — | — |
| 1985 | 48° | 35° | 42° | 2.46" | — |
| 1984 | 46° | 38° | 42° | — | — |
| 1983 | 57° | 48° | 53° | 0.41" | — |
| 1982 | 53° | 30° | 42° | — | — |
| 1981 | 56° | 46° | 51° | 0.05" | — |
| 1980 | 49° | 42° | 45° | — | — |
| 1979 | 50° | 33° | 42° | 1.88" | — |
| 1978coldest | 45° | 25° | 35° | — | — |
| 1977 | 59° | 45° | 52° | — | — |
| 1976 | 49° | 43° | 46° | 2.82" | — |
| 1975 | 58° | 34° | 46° | — | — |
| 1974 | 53° | 32° | 43° | — | — |
| 1973 | 61° | 46° | 53° | — | — |
| 1972 | 55° | 28° | 42° | — | — |
| 1971 | 49° | 36° | 42° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS