Weather on March 17
Vacaville, CA
55 Years of Data
Avg High
68°F
Avg Low
43°F
Warmest
2026
68°F avg
Coldest
2002
43°F avg
About This Date
March 17th in Vacaville, CA typically brings mild spring weather, with average highs around 68°F and lows near 43°F — a 25°F daily swing. Over 56 years of records, the warmest March 17th was in 2026 (68°F average), while the coldest was 2002 (43°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 25% of March 17th dates historically, with the wettest March 17th recording 1.85" of rain. The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
Planning for March 17th in Vacaville, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 87° | 48° | 68° | — | — |
| 2025 | 59° | 42° | 51° | 0.25" | — |
| 2024 | 76° | 40° | 58° | — | — |
| 2023 | 69° | 38° | 53° | — | — |
| 2022 | 75° | 45° | 60° | — | — |
| 2021 | 59° | 35° | 47° | — | — |
| 2020 | 57° | 41° | 49° | — | — |
| 2019 | 74° | 39° | 56° | — | — |
| 2018 | 56° | 35° | 45° | 1.04" | — |
| 2017 | 77° | 46° | 62° | — | — |
| 2016 | 78° | 43° | 60° | — | — |
| 2015 | 77° | 49° | 63° | — | — |
| 2014 | 70° | 51° | 60° | — | — |
| 2013 | 72° | 41° | 56° | — | — |
| 2012 | 53° | 38° | 45° | 0.97" | — |
| 2011 | 62° | 36° | 49° | — | — |
| 2010 | 76° | 52° | 64° | — | — |
| 2009 | 70° | 50° | 60° | — | — |
| 2008 | 73° | 45° | 59° | — | — |
| 2007 | 80° | 49° | 64° | — | — |
| 2006 | 60° | 46° | 53° | 0.03" | — |
| 2005 | 67° | 52° | 59° | — | — |
| 2004 | 84° | 49° | 66° | — | — |
| 2003 | 66° | 38° | 52° | — | — |
| 2002coldest | 53° | 34° | 43° | 0.36" | — |
| 2001 | 77° | 42° | 60° | — | — |
| 2000 | 73° | 44° | 59° | — | — |
| 1999 | 63° | 38° | 50° | — | — |
| 1998 | 74° | 49° | 61° | — | — |
| 1997 | 70° | 47° | 58° | 0.41" | — |
| 1996 | 83° | 49° | 66° | — | — |
| 1995 | 72° | 42° | 57° | — | — |
| 1994 | 71° | 37° | 54° | — | — |
| 1993 | 56° | 41° | 48° | 1.85" | — |
| 1992 | 65° | 42° | 53° | — | — |
| 1991 | 55° | 46° | 51° | 1.12" | — |
| 1990 | 72° | 47° | 59° | — | — |
| 1989 | 64° | 54° | 59° | 0.66" | — |
| 1988 | 74° | 39° | 56° | — | — |
| 1987 | 69° | 41° | 55° | — | — |
| 1986 | 64° | 46° | 55° | — | — |
| 1985 | 66° | 40° | 53° | — | — |
| 1984 | 67° | 36° | 51° | 0.69" | — |
| 1983 | 55° | 42° | 49° | 0.81" | — |
| 1982 | 54° | 38° | 46° | 1.55" | — |
| 1981 | 65° | 39° | 52° | — | — |
| 1980 | 63° | 40° | 51° | — | — |
| 1979 | 61° | 42° | 51° | 0.03" | — |
| 1978 | 74° | 45° | 59° | — | — |
| 1977 | 57° | 37° | 47° | — | — |
| 1976 | 75° | 53° | 64° | — | — |
| 1975 | 55° | 41° | 48° | 0.05" | — |
| 1974 | 71° | 34° | 52° | — | — |
| 1973 | 58° | 38° | 48° | — | — |
| 1972 | 85° | 44° | 64° | — | — |
| 1971 | 67° | 44° | 55° | — | — |
56 years of data from VACAVILLE/NUT TREE AP ASOS