Weather on March 20
Fairfield, CA
55 Years of Data
Avg High
68°F
Avg Low
45°F
Warmest
2026
69°F avg
Coldest
2011
45°F avg
About This Date
March 20th in Fairfield, CA typically brings mild spring weather, with average highs around 68°F and lows near 45°F. Over 56 years of records, the warmest March 20th was in 2026 (69°F average), while the coldest was 2011 (45°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 21% of March 20th dates historically, with the wettest March 20th recording 2.54" of rain. The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
Planning for March 20th in Fairfield, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 88° | 49° | 69° | — | — |
| 2025 | 65° | 42° | 53° | 0.03" | — |
| 2024 | 73° | 44° | 59° | — | — |
| 2023 | 58° | 45° | 51° | — | — |
| 2022 | 73° | 46° | 60° | — | — |
| 2021 | 64° | 43° | 53° | — | — |
| 2020 | 63° | 39° | 51° | — | — |
| 2019 | 67° | 50° | 58° | 1.04" | — |
| 2018 | 59° | 50° | 55° | 0.28" | — |
| 2017 | 63° | 54° | 58° | 0.56" | — |
| 2016 | 64° | 53° | 59° | 0.2" | — |
| 2015 | — | 49° | — | — | — |
| 2014 | 77° | 49° | 63° | — | — |
| 2013 | 60° | 48° | 54° | — | — |
| 2012 | 64° | 47° | 55° | — | — |
| 2011coldest | 49° | 42° | 45° | — | — |
| 2010 | 78° | 45° | 61° | — | — |
| 2009 | 59° | 48° | 54° | — | — |
| 2008 | 65° | 42° | 53° | — | — |
| 2007 | 71° | 47° | 59° | — | — |
| 2006 | 52° | 42° | 47° | — | — |
| 2005 | 58° | 52° | 55° | 1.42" | — |
| 2004 | 83° | 47° | 65° | — | — |
| 2003 | 66° | 45° | 55° | 0.15" | — |
| 2002 | 68° | 38° | 53° | — | — |
| 2001 | 77° | 55° | 66° | — | — |
| 2000 | 71° | 51° | 61° | — | — |
| 1999 | 62° | 45° | 53° | 1.09" | — |
| 1998 | 72° | 51° | 61° | — | — |
| 1997 | 78° | 49° | 63° | — | — |
| 1996 | 78° | 48° | 63° | — | — |
| 1995 | 57° | 52° | 54° | — | — |
| 1994 | 69° | 42° | 56° | — | — |
| 1993 | 74° | 47° | 60° | 2.54" | — |
| 1992 | 67° | 47° | 57° | — | — |
| 1991 | 54° | 44° | 49° | 0.91" | — |
| 1990 | 77° | 44° | 61° | — | — |
| 1989 | 73° | 49° | 61° | — | — |
| 1988 | 77° | 47° | 62° | — | — |
| 1987 | 57° | 36° | 46° | — | — |
| 1986 | 70° | 39° | 54° | — | — |
| 1985 | 72° | 39° | 55° | — | — |
| 1984 | 77° | 48° | 63° | — | — |
| 1983 | 68° | 40° | 54° | — | — |
| 1982 | 63° | 36° | 49° | — | — |
| 1981 | 63° | 34° | 48° | 0.15" | — |
| 1980 | 71° | 45° | 58° | — | — |
| 1979 | 68° | 41° | 55° | — | — |
| 1978 | 72° | 51° | 61° | — | — |
| 1977 | 67° | 40° | 53° | — | — |
| 1976 | 61° | 42° | 51° | — | — |
| 1975 | 62° | 39° | 51° | — | — |
| 1974 | 75° | 45° | 60° | — | — |
| 1973 | 52° | 40° | 46° | 2.06" | — |
| 1972 | 68° | 43° | 55° | — | — |
| 1971 | 75° | 41° | 58° | — | — |
56 years of data from FAIRFIELD