Weather on December 28
Vallejo, CA
55 Years of Data
Avg High
55°F
Avg Low
38°F
Warmest
2024
59°F avg
Coldest
1978
37°F avg
About This Date
December 28th in Vallejo, CA typically brings cool winter weather, with average highs around 55°F and lows near 38°F. Over 55 years of records, the warmest December 28th was in 2024 (59°F average), while the coldest was 1978 (37°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 38% of December 28th dates historically, with the wettest December 28th recording 3.56" of rain. The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
Planning for December 28th 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 | 59° | 39° | 49° | — | — |
| 2024warmest | 64° | 53° | 59° | 0.03" | — |
| 2023 | 62° | 53° | 58° | — | — |
| 2022 | 56° | 40° | 48° | — | — |
| 2021 | 46° | 36° | 41° | 0.05" | — |
| 2020 | 56° | 44° | 50° | 0.18" | — |
| 2019 | 61° | 38° | 49° | — | — |
| 2018 | 62° | 41° | 52° | — | — |
| 2017 | 62° | 42° | 52° | — | — |
| 2016 | 57° | 37° | 47° | — | — |
| 2015 | 55° | 34° | 44° | — | — |
| 2014 | 55° | 34° | 44° | — | — |
| 2013 | 62° | 24° | 43° | — | — |
| 2012 | 47° | 33° | 40° | — | — |
| 2011 | 61° | 35° | 48° | — | — |
| 2010 | 55° | 45° | 50° | 2.95" | — |
| 2009 | 51° | 33° | 42° | — | — |
| 2008 | 56° | 41° | 48° | — | — |
| 2007 | 42° | 38° | 40° | 0.13" | — |
| 2006 | 62° | 34° | 48° | — | — |
| 2005 | 65° | 35° | 50° | 3.56" | — |
| 2004 | 53° | 40° | 46° | 1.22" | — |
| 2003 | 49° | 29° | 39° | 0.08" | — |
| 2002 | 59° | 46° | 53° | 2.54" | — |
| 2001 | 53° | — | — | 2.67" | — |
| 2000 | 60° | 30° | 45° | — | — |
| 1999 | 67° | 37° | 52° | — | — |
| 1998 | 58° | 39° | 48° | — | — |
| 1997 | 57° | 31° | 44° | — | — |
| 1996 | 59° | 38° | 48° | 0.2" | — |
| 1995 | 54° | 39° | 46° | 0.05" | — |
| 1994 | 54° | 40° | 47° | 0.25" | — |
| 1993 | 57° | 38° | 47° | — | — |
| 1992 | 52° | 32° | 42° | 1.35" | — |
| 1991 | 57° | 44° | 51° | 1.8" | — |
| 1990 | 49° | 30° | 39° | — | — |
| 1989 | 55° | 32° | 44° | — | — |
| 1988 | 44° | 36° | 40° | 0.38" | — |
| 1987 | 49° | 38° | 43° | 1.42" | — |
| 1986 | 45° | 38° | 41° | — | — |
| 1985 | 41° | 32° | 37° | — | — |
| 1984 | 44° | 34° | 39° | — | — |
| 1983 | 55° | 39° | 47° | — | — |
| 1982 | 53° | 41° | 47° | — | — |
| 1981 | 56° | 39° | 47° | — | — |
| 1980 | 52° | 41° | 46° | 0.03" | — |
| 1979 | 48° | 35° | 42° | — | — |
| 1978coldest | 48° | 27° | 37° | — | — |
| 1977 | 56° | 48° | 52° | 0.08" | — |
| 1976 | 59° | 33° | 46° | — | — |
| 1975 | 68° | 39° | 54° | — | — |
| 1974 | 54° | 42° | 48° | 2.31" | — |
| 1973 | 58° | 44° | 51° | 0.58" | — |
| 1972 | — | 38° | — | — | — |
| 1971 | 48° | 41° | 45° | — | — |
55 years of data from VALLEJO