Weather on December 19
Vallejo, CA
55 Years of Data
Avg High
55°F
Avg Low
39°F
Warmest
1999
58°F avg
Coldest
1985
35°F avg
About This Date
December 19th in Vallejo, CA typically brings cool winter weather, with average highs around 55°F and lows near 39°F. Over 55 years of records, the warmest December 19th was in 1999 (58°F average), while the coldest was 1985 (35°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 31% of December 19th dates historically, with the wettest December 19th recording 3.23" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for December 19th in Vallejo, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 61° | 51° | 56° | — | — |
| 2024 | 50° | 43° | 46° | — | — |
| 2023 | 62° | 54° | 58° | 0.94" | — |
| 2022 | 44° | 36° | 40° | — | — |
| 2021 | 47° | 39° | 43° | — | — |
| 2020 | 58° | 39° | 48° | — | — |
| 2019 | 59° | 44° | 52° | — | — |
| 2018 | 59° | 49° | 54° | — | — |
| 2017 | 61° | 41° | 51° | — | — |
| 2016 | 53° | 34° | 43° | — | — |
| 2015 | 59° | 46° | 53° | 0.58" | — |
| 2014 | 56° | 51° | 53° | 2.16" | — |
| 2013 | 63° | 30° | 47° | — | — |
| 2012 | 52° | 25° | 38° | — | — |
| 2011 | 67° | 36° | 51° | — | — |
| 2010 | 56° | 45° | 50° | 3.18" | — |
| 2009 | 52° | 43° | 47° | — | — |
| 2008 | 54° | 29° | 41° | 0.25" | — |
| 2007 | 55° | 39° | 47° | 0.53" | — |
| 2006 | 51° | 21° | 36° | — | — |
| 2005 | 62° | 47° | 54° | 0.2" | — |
| 2004 | 52° | 32° | 42° | — | — |
| 2003 | — | 46° | — | — | — |
| 2002 | 49° | 36° | 42° | 3.23" | — |
| 2001 | 54° | 42° | 48° | — | — |
| 2000 | 63° | 40° | 51° | — | — |
| 1999warmest | 77° | 40° | 58° | — | — |
| 1998 | 53° | 35° | 44° | — | — |
| 1997 | 63° | 38° | 50° | — | — |
| 1996 | 48° | 37° | 43° | — | — |
| 1995 | 58° | 43° | 50° | 0.28" | — |
| 1994 | 52° | 40° | 46° | — | — |
| 1993 | 52° | 33° | 42° | — | — |
| 1992 | 48° | 30° | 39° | — | — |
| 1991 | 60° | 38° | 49° | 0.03" | — |
| 1990 | 47° | 27° | 37° | — | — |
| 1989 | 41° | 34° | 37° | — | — |
| 1988 | 52° | 45° | 48° | 0.13" | — |
| 1987 | 57° | 37° | 47° | — | — |
| 1986 | 52° | 40° | 46° | 0.18" | — |
| 1985coldest | 38° | 33° | 35° | — | — |
| 1984 | 59° | 34° | 46° | 0.13" | — |
| 1983 | 56° | 46° | 51° | — | — |
| 1982 | 47° | 37° | 42° | — | — |
| 1981 | 63° | 49° | 56° | 1.32" | — |
| 1980 | 58° | 43° | 50° | — | — |
| 1979 | 49° | 38° | 43° | 0.2" | — |
| 1978 | 51° | 32° | 42° | 0.03" | — |
| 1977 | 52° | 37° | 44° | — | — |
| 1976 | 61° | 34° | 47° | — | — |
| 1975 | 58° | 39° | 48° | — | — |
| 1974 | 48° | 35° | 42° | — | — |
| 1973 | 59° | 39° | 49° | — | — |
| 1972 | 52° | 45° | 48° | 0.89" | — |
| 1971 | 54° | 31° | 42° | — | — |
55 years of data from VALLEJO