Weather on March 20
San Francisco, CA
55 Years of Data
Avg High
63°F
Avg Low
50°F
Warmest
2026
75°F avg
Coldest
2006
48°F avg
About This Date
March 20th in San Francisco, CA typically brings mild spring weather, with average highs around 63°F and lows near 50°F. Over 56 years of records, the warmest March 20th was in 2026 (75°F average), while the coldest was 2006 (48°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 30% of March 20th dates historically, with the wettest March 20th recording 2.18" of rain. The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
Planning for March 20th in San Francisco, CA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 90° | 60° | 75° | — | — |
| 2025 | 60° | 46° | 53° | — | — |
| 2024 | 60° | 49° | 54° | — | — |
| 2023 | 55° | 48° | 52° | 0.15" | — |
| 2022 | 60° | 47° | 53° | — | — |
| 2021 | 57° | 46° | 52° | — | — |
| 2020 | 64° | 48° | 56° | — | — |
| 2019 | 60° | 51° | 56° | 1.68" | — |
| 2018 | 59° | 51° | 55° | 1.96" | — |
| 2017 | 61° | 54° | 57° | 2.18" | — |
| 2016 | 64° | 54° | 59° | 0.25" | — |
| 2015 | 66° | 52° | 59° | — | — |
| 2014 | 64° | 50° | 57° | — | — |
| 2013 | 60° | 49° | 54° | 0.2" | — |
| 2012 | 60° | 49° | 54° | — | — |
| 2011 | 57° | 48° | 53° | 0.25" | — |
| 2010 | 62° | 51° | 57° | — | — |
| 2009 | 59° | 50° | 55° | — | — |
| 2008 | 57° | 46° | 52° | — | — |
| 2007 | 57° | 49° | 53° | 0.51" | — |
| 2006coldest | 52° | 44° | 48° | 1.37" | — |
| 2005 | 62° | 55° | 59° | 0.05" | — |
| 2004 | 78° | 51° | 65° | — | — |
| 2003 | 60° | 50° | 55° | — | — |
| 2002 | 71° | 49° | 60° | — | — |
| 2001 | 77° | 55° | 66° | — | — |
| 2000 | 68° | 48° | 58° | — | — |
| 1999 | 61° | 46° | 53° | 0.03" | — |
| 1998 | 60° | 54° | 57° | — | — |
| 1997 | 74° | 51° | 62° | — | — |
| 1996 | 70° | 50° | 60° | — | — |
| 1995 | 58° | 49° | 53° | 1.85" | — |
| 1994 | 62° | 47° | 54° | — | — |
| 1993 | 69° | 50° | 60° | — | — |
| 1992 | 69° | 56° | 62° | 0.05" | — |
| 1991 | 56° | 46° | 51° | 0.86" | — |
| 1990 | 72° | 50° | 61° | — | — |
| 1989 | 73° | 49° | 61° | — | — |
| 1988 | 71° | 49° | 60° | — | — |
| 1987 | 57° | 44° | 51° | — | — |
| 1986 | 73° | 52° | 62° | — | — |
| 1985 | 63° | 48° | 55° | — | — |
| 1984 | 68° | 51° | 60° | — | — |
| 1983 | 54° | 48° | 51° | 0.99" | — |
| 1982 | 58° | 45° | 51° | — | — |
| 1981 | 53° | 47° | 50° | 1.12" | — |
| 1980 | 56° | 50° | 53° | — | — |
| 1979 | 59° | 52° | 55° | — | — |
| 1978 | 66° | 55° | 61° | — | — |
| 1977 | 63° | 48° | 55° | — | — |
| 1976 | 60° | 48° | 54° | — | — |
| 1975 | 54° | 47° | 50° | — | — |
| 1974 | 58° | 48° | 53° | — | — |
| 1973 | 54° | 45° | 49° | 0.1" | — |
| 1972 | 55° | 48° | 52° | — | — |
| 1971 | 71° | 51° | 61° | — | — |
56 years of data from SAN FRANCISCO DWTN