Weather on March 21
Hesperia, CA
55 Years of Data
Avg High
69°F
Avg Low
40°F
Warmest
2026
74°F avg
Coldest
2011
39°F avg
About This Date
March 21st in Hesperia, CA typically brings mild spring weather, with average highs around 69°F and lows near 40°F — a 29°F daily swing. Over 53 years of records, the warmest March 21st was in 2026 (74°F average), while the coldest was 2011 (39°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 17% of March 21st dates historically, with the wettest March 21st recording 6.15" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Hesperia, CA? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 93° | 55° | 74° | — | — |
| 2025 | 73° | 41° | 57° | — | — |
| 2021 | 59° | 32° | 46° | — | — |
| 2020 | 61° | 40° | 50° | — | — |
| 2019 | 52° | 42° | 47° | — | — |
| 2018 | 67° | 42° | 54° | 0.28" | — |
| 2017 | 68° | 49° | 58° | — | — |
| 2016 | 75° | 52° | 63° | — | — |
| 2015 | 79° | 46° | 62° | — | — |
| 2014 | 73° | 46° | 60° | — | — |
| 2013 | 74° | 50° | 62° | — | — |
| 2012 | 76° | 40° | 58° | — | — |
| 2011coldest | 45° | 33° | 39° | 6.15" | — |
| 2010 | 79° | 43° | 61° | — | — |
| 2009 | 70° | 46° | 58° | — | — |
| 2008 | 73° | 35° | 54° | — | — |
| 2007 | 56° | 36° | 46° | — | — |
| 2006 | 55° | 34° | 44° | 0.25" | — |
| 2005 | 63° | 38° | 50° | — | — |
| 2004 | 91° | 48° | 70° | — | — |
| 2003 | 66° | 39° | 53° | — | — |
| 2002 | 80° | 40° | 60° | — | — |
| 2001 | 86° | 47° | 66° | — | — |
| 2000 | 60° | 41° | 51° | — | — |
| 1999 | 58° | 30° | 44° | — | — |
| 1998 | 73° | 40° | 56° | — | — |
| 1997 | 91° | 42° | 67° | — | — |
| 1996 | 86° | 48° | 67° | — | — |
| 1995 | 71° | 50° | 61° | 0.03" | — |
| 1994 | 68° | 42° | 55° | — | — |
| 1993 | 66° | 35° | 51° | — | — |
| 1992 | 63° | 42° | 52° | 3.07" | — |
| 1991 | 48° | 33° | 41° | 0.08" | — |
| 1990 | 83° | 41° | 62° | — | — |
| 1989 | 69° | 34° | 51° | — | — |
| 1988 | 80° | 40° | 60° | — | — |
| 1987 | 60° | 37° | 49° | — | — |
| 1986 | 74° | 37° | 55° | — | — |
| 1985 | 74° | 44° | 59° | — | — |
| 1984 | 80° | 47° | 63° | — | — |
| 1983 | 53° | 35° | 44° | 0.99" | — |
| 1982 | 56° | 29° | 42° | — | — |
| 1981 | 58° | 38° | 48° | — | — |
| 1980 | 67° | 38° | 52° | — | — |
| 1979 | 50° | 35° | 43° | 0.61" | — |
| 1978 | 76° | 51° | 63° | — | — |
| 1977 | 69° | 35° | 52° | — | — |
| 1976 | 75° | 35° | 55° | — | — |
| 1975 | 68° | 36° | 52° | — | — |
| 1974 | 68° | 44° | 56° | — | — |
| 1973 | 49° | 33° | 41° | 1.04" | — |
| 1972 | 83° | 42° | 62° | — | — |
| 1971 | 74° | 34° | 54° | — | — |
53 years of data from HESPERIA 2E