Weather on March 21
Fremont, CA
55 Years of Data
Avg High
66°F
Avg Low
47°F
Warmest
2026
70°F avg
Coldest
1975
47°F avg
About This Date
March 21st in Fremont, 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 21st was in 2026 (70°F average), while the coldest was 1975 (47°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 36% of March 21st dates historically, with the wettest March 21st recording 2.57" of rain. The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Fremont, CA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 85° | 55° | 70° | — | — |
| 2025 | 62° | 40° | 51° | — | — |
| 2024 | 69° | 46° | 58° | — | — |
| 2023 | 54° | 44° | 49° | 1.4" | — |
| 2022 | 66° | 41° | 54° | — | — |
| 2021 | 62° | 37° | 50° | — | — |
| 2020 | 60° | 44° | 52° | 0.08" | — |
| 2019 | 67° | 42° | 54° | — | — |
| 2018 | 65° | 53° | 59° | 0.36" | — |
| 2017 | 68° | 56° | 62° | 1.27" | — |
| 2016 | 65° | 48° | 56° | 0.25" | — |
| 2015 | 77° | 48° | 63° | — | — |
| 2014 | 67° | 44° | 55° | — | — |
| 2013 | 61° | 46° | 53° | — | — |
| 2012 | 71° | 46° | 59° | — | — |
| 2011 | 57° | 44° | 51° | 0.3" | — |
| 2010 | 65° | 45° | 55° | — | — |
| 2009 | 60° | 48° | 54° | 0.03" | — |
| 2008 | 65° | 41° | 53° | — | — |
| 2007 | 66° | 45° | 55° | — | — |
| 2006 | 58° | 42° | 50° | 0.94" | — |
| 2005 | 63° | 46° | 54° | 0.15" | — |
| 2004 | 68° | 53° | 61° | — | — |
| 2003 | 67° | 48° | 57° | — | — |
| 2002 | 68° | 48° | 58° | — | — |
| 2001 | 68° | 53° | 61° | — | — |
| 2000 | 75° | 55° | 65° | — | — |
| 1999 | 67° | 47° | 57° | 0.05" | — |
| 1998 | 65° | 53° | 59° | 0.08" | — |
| 1997 | 79° | 57° | 68° | — | — |
| 1996 | 71° | 47° | 59° | — | — |
| 1995 | 59° | 45° | 52° | 2.57" | — |
| 1994 | 65° | 46° | 55° | — | — |
| 1993 | 68° | 50° | 59° | — | — |
| 1992 | 68° | 55° | 62° | 0.48" | — |
| 1991 | 54° | 43° | 48° | 0.43" | — |
| 1990 | 74° | 47° | 60° | — | — |
| 1989 | 72° | 51° | 61° | — | — |
| 1988 | 72° | 51° | 61° | — | — |
| 1987 | 62° | 42° | 52° | 1.02" | — |
| 1986 | 72° | 49° | 60° | — | — |
| 1985 | 65° | 48° | 56° | — | — |
| 1984 | 71° | 50° | 61° | — | — |
| 1983 | 58° | 46° | 52° | 1.73" | — |
| 1982 | 60° | 47° | 53° | — | — |
| 1981 | 56° | 52° | 54° | 1.14" | — |
| 1980 | 60° | 47° | 53° | 0.18" | — |
| 1979 | 63° | 49° | 56° | — | — |
| 1978 | 74° | 55° | 64° | 0.1" | — |
| 1977 | 64° | 45° | 54° | — | — |
| 1976 | 64° | 45° | 54° | — | — |
| 1975coldest | 56° | 38° | 47° | — | — |
| 1974 | 64° | 49° | 56° | — | — |
| 1973 | 54° | 48° | 51° | 0.23" | — |
| 1972 | 61° | 50° | 55° | — | — |
| 1971 | 73° | 44° | 59° | — | — |
56 years of data from FREMONT