Weather on April 21
Vallejo, CA
55 Years of Data
Avg High
73°F
Avg Low
47°F
Warmest
1987
76°F avg
Coldest
2008
45°F avg
About This Date
April 21st in Vallejo, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 47°F — a 26°F daily swing. Over 55 years of records, the warmest April 21st was in 1987 (76°F average), while the coldest was 2008 (45°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 22% of April 21st dates historically, with the wettest April 21st recording 0.79" of rain. The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in Vallejo, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 49° | 64° | — | — |
| 2024 | 85° | 53° | 69° | — | — |
| 2023 | 81° | 49° | 65° | — | — |
| 2022 | 66° | 50° | 58° | 0.58" | — |
| 2021 | 71° | 47° | 59° | — | — |
| 2020 | 75° | 46° | 61° | — | — |
| 2019 | 76° | 47° | 61° | — | — |
| 2018 | 84° | 49° | 66° | — | — |
| 2017 | 81° | 48° | 64° | — | — |
| 2016 | 75° | 55° | 65° | — | — |
| 2015 | 69° | 51° | 60° | — | — |
| 2014 | 69° | 41° | 55° | — | — |
| 2013 | 83° | 40° | 61° | — | — |
| 2012 | 86° | 52° | 69° | — | — |
| 2011 | 65° | 44° | 54° | 0.08" | — |
| 2010 | 58° | 38° | 48° | 0.2" | — |
| 2009 | 91° | 48° | 70° | — | — |
| 2008coldest | 60° | 30° | 45° | — | — |
| 2007 | 58° | 35° | 46° | 0.79" | — |
| 2006 | 70° | 47° | 58° | — | — |
| 2005 | 62° | 48° | 55° | — | — |
| 2004 | 67° | 47° | 57° | — | — |
| 2003 | 74° | 42° | 58° | — | — |
| 2002 | 72° | 39° | 55° | — | — |
| 2001 | 66° | 34° | 50° | — | — |
| 2000 | 71° | 47° | 59° | — | — |
| 1999 | 68° | 47° | 57° | — | — |
| 1998 | 85° | 48° | 66° | — | — |
| 1997 | 78° | 60° | 69° | — | — |
| 1996 | 70° | 40° | 55° | — | — |
| 1995 | 73° | 42° | 58° | — | — |
| 1994 | 74° | 50° | 62° | — | — |
| 1993 | 72° | 49° | 60° | — | — |
| 1992 | 72° | 48° | 60° | — | — |
| 1991 | 71° | 48° | 60° | 0.25" | — |
| 1990 | 73° | 46° | 60° | — | — |
| 1989 | 69° | 54° | 61° | 0.03" | — |
| 1988 | 69° | 44° | 57° | 0.25" | — |
| 1987warmest | 91° | 60° | 76° | — | — |
| 1986 | 88° | 53° | 70° | — | — |
| 1985 | 63° | 45° | 54° | 0.08" | — |
| 1984 | 80° | 55° | 68° | — | — |
| 1983 | 65° | 50° | 57° | 0.2" | — |
| 1982 | 79° | 55° | 67° | — | — |
| 1981 | 79° | 46° | 62° | — | — |
| 1980 | 60° | 50° | 55° | 0.23" | — |
| 1979 | 75° | 43° | 59° | — | — |
| 1978 | 67° | 41° | 54° | 0.03" | — |
| 1977 | 70° | 38° | 54° | — | — |
| 1976 | 79° | 50° | 64° | — | — |
| 1975 | 74° | 45° | 59° | — | — |
| 1974 | 72° | 45° | 58° | — | — |
| 1973 | 70° | 48° | 59° | — | — |
| 1972 | 73° | 44° | 59° | — | — |
| 1971 | 58° | 38° | 48° | 0.36" | — |
55 years of data from VALLEJO