Weather on March 21
Moreno Valley, CA
55 Years of Data
Avg High
72°F
Avg Low
44°F
Warmest
2026
72°F avg
Coldest
1973
45°F avg
About This Date
March 21st in Moreno Valley, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 44°F — a 28°F daily swing. Over 56 years of records, the warmest March 21st was in 2026 (72°F average), while the coldest was 1973 (45°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 18% of March 21st dates historically, with the wettest March 21st recording 2.67" of rain. The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Moreno Valley, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 93° | 52° | 72° | — | — |
| 2025 | 79° | 39° | 59° | — | — |
| 2024 | 72° | 41° | 56° | — | — |
| 2023 | 58° | 44° | 51° | 2.64" | — |
| 2022 | 80° | 41° | 61° | — | — |
| 2021 | 64° | 35° | 50° | — | — |
| 2020 | 65° | 41° | 53° | — | — |
| 2019 | 55° | 42° | 49° | 0.46" | — |
| 2018 | 74° | 43° | 58° | — | — |
| 2017 | 69° | 49° | 59° | 0.03" | — |
| 2016 | 72° | 43° | 57° | — | — |
| 2015 | 80° | 42° | 61° | — | — |
| 2014 | 67° | 46° | 56° | — | — |
| 2013 | 73° | 46° | 60° | — | — |
| 2012 | 78° | 37° | 58° | — | — |
| 2011 | 50° | 39° | 45° | — | — |
| 2010 | 80° | 52° | 66° | — | — |
| 2009 | 64° | 49° | 56° | — | — |
| 2008 | 81° | 43° | 62° | — | — |
| 2007 | 60° | 45° | 52° | — | — |
| 2006 | 57° | 38° | 47° | — | — |
| 2005 | 70° | 40° | 55° | — | — |
| 2004 | 79° | 46° | 62° | — | — |
| 2003 | 81° | 39° | 60° | — | — |
| 2002 | 84° | 45° | 64° | — | — |
| 2001 | 81° | 49° | 65° | — | — |
| 2000 | 73° | 50° | 62° | — | — |
| 1999 | 67° | 38° | 52° | — | — |
| 1998 | 69° | 51° | 60° | — | — |
| 1997 | 88° | 51° | 69° | — | — |
| 1996 | 76° | 52° | 64° | — | — |
| 1995 | 58° | 54° | 56° | 0.91" | — |
| 1994 | 72° | 47° | 59° | — | — |
| 1993 | 75° | 48° | 62° | — | — |
| 1992 | 62° | 50° | 56° | 2.67" | — |
| 1991 | 53° | 40° | 46° | 0.36" | — |
| 1990 | 87° | 53° | 70° | — | — |
| 1989 | 86° | 44° | 65° | — | — |
| 1988 | 87° | 48° | 68° | — | — |
| 1987 | 58° | 41° | 49° | 0.71" | — |
| 1986 | 85° | 56° | 70° | — | — |
| 1985 | 67° | 44° | 55° | — | — |
| 1984 | 78° | 48° | 63° | — | — |
| 1983 | — | 43° | — | 0.76" | — |
| 1982 | 67° | 34° | 50° | — | — |
| 1981 | 67° | 37° | 52° | — | — |
| 1980 | 63° | 42° | 52° | — | — |
| 1979 | 54° | 43° | 48° | 0.69" | — |
| 1978 | 68° | 56° | 62° | 0.66" | — |
| 1977 | 83° | 44° | 63° | — | — |
| 1976 | 84° | 42° | 63° | — | — |
| 1975 | 62° | 46° | 54° | — | — |
| 1974 | 65° | 47° | 56° | — | — |
| 1973coldest | 57° | 34° | 45° | — | — |
| 1972 | 83° | 41° | 62° | — | — |
| 1971 | 76° | 29° | 52° | — | — |
56 years of data from MARCH AFB