Weather on March 20
Antioch, CA
55 Years of Data
Avg High
66°F
Avg Low
47°F
Warmest
2026
76°F avg
Coldest
2023
46°F avg
About This Date
March 20th in Antioch, CA typically brings mild spring weather, with average highs around 66°F and lows near 47°F. Over 56 years of records, the warmest March 20th was in 2026 (76°F average), while the coldest was 2023 (46°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 14% of March 20th dates historically, with the wettest March 20th recording 1.55" of rain. The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
Planning for March 20th in Antioch, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 80° | 71° | 76° | — | — |
| 2025 | 56° | 40° | 48° | — | — |
| 2024 | 65° | 49° | 57° | — | — |
| 2023coldest | 52° | 40° | 46° | — | — |
| 2022 | 63° | 42° | 52° | — | — |
| 2021 | 62° | 47° | 54° | — | — |
| 2020 | 65° | 43° | 54° | — | — |
| 2019 | 64° | 47° | 55° | 0.94" | — |
| 2018 | 51° | 45° | 48° | — | — |
| 2017 | 65° | 52° | 58° | 0.38" | — |
| 2016 | 73° | 49° | 61° | 0.03" | — |
| 2015 | 75° | 49° | 62° | — | — |
| 2014 | 75° | 52° | 63° | — | — |
| 2013 | 69° | 49° | 59° | 0.03" | — |
| 2012 | 71° | 38° | 54° | — | — |
| 2011 | 64° | 41° | 53° | — | — |
| 2010 | 67° | 54° | 60° | — | — |
| 2009 | 66° | 44° | 55° | — | — |
| 2008 | 46° | 64° | 55° | — | — |
| 2007 | 72° | 49° | 60° | — | — |
| 2006 | 61° | 41° | 51° | 0.84" | — |
| 2005 | 62° | 44° | 53° | — | — |
| 2004 | 74° | 55° | 64° | — | — |
| 2003 | 65° | 47° | 56° | — | — |
| 2002 | 67° | 44° | 55° | — | — |
| 2001 | 76° | 60° | 68° | — | — |
| 2000 | 59° | 43° | 51° | — | — |
| 1999 | 62° | 44° | 53° | — | — |
| 1998 | 69° | 52° | 60° | — | — |
| 1997 | 73° | 53° | 63° | — | — |
| 1996 | 73° | 44° | 59° | — | — |
| 1995 | 63° | 51° | 57° | — | — |
| 1994 | 69° | 44° | 57° | — | — |
| 1993 | 67° | 46° | 56° | — | — |
| 1992 | 63° | 52° | 57° | — | — |
| 1991 | 60° | 45° | 52° | 0.51" | — |
| 1990 | 71° | 49° | 60° | — | — |
| 1989 | 68° | 53° | 61° | — | — |
| 1988 | 76° | 46° | 61° | — | — |
| 1987 | 56° | 40° | 48° | — | — |
| 1986 | 70° | 47° | 58° | — | — |
| 1985 | 66° | 40° | 53° | — | — |
| 1984 | 75° | 47° | 61° | — | — |
| 1983 | 67° | 49° | 58° | — | — |
| 1982 | 59° | 37° | 48° | — | — |
| 1981 | 60° | 40° | 50° | 0.23" | — |
| 1980 | 72° | 39° | 55° | — | — |
| 1979 | 66° | 40° | 53° | — | — |
| 1978 | 73° | 49° | 61° | — | — |
| 1977 | 68° | 41° | 55° | — | — |
| 1976 | 62° | 40° | 51° | — | — |
| 1975 | 62° | 41° | 52° | — | — |
| 1974 | 75° | 49° | 62° | — | — |
| 1973 | 55° | 40° | 47° | 1.55" | — |
| 1972 | 76° | 46° | 61° | — | — |
| 1971 | 72° | 43° | 57° | — | — |
56 years of data from ANTIOCH FIBREBRD MILLS