Weather on May 21
Moreno Valley, CA
55 Years of Data
Avg High
79°F
Avg Low
52°F
Warmest
2000
82°F avg
Coldest
2002
51°F avg
About This Date
May 21st in Moreno Valley, CA typically brings pleasant spring weather, with average highs around 79°F and lows near 52°F — a 27°F daily swing. Over 55 years of records, the warmest May 21st was in 2000 (82°F average), while the coldest was 2002 (51°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 21st dates historically. 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 May 21st in Moreno Valley, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 51° | 72° | — | — |
| 2024 | 77° | 53° | 65° | — | — |
| 2023 | 85° | 58° | 71° | — | — |
| 2022 | 74° | 56° | 65° | — | — |
| 2021 | 71° | 49° | 60° | — | — |
| 2020 | 87° | 44° | 66° | — | — |
| 2019 | 64° | 48° | 56° | — | — |
| 2018 | 67° | 55° | 61° | — | — |
| 2017 | 96° | 50° | 73° | — | — |
| 2016 | 69° | 51° | 60° | — | — |
| 2015 | 66° | 54° | 60° | — | — |
| 2014 | 72° | 47° | 59° | — | — |
| 2013 | 89° | 53° | 71° | — | — |
| 2012 | 95° | 54° | 74° | — | — |
| 2011 | 78° | 48° | 63° | — | — |
| 2010 | 74° | 51° | 62° | — | — |
| 2009 | 83° | 54° | 68° | — | — |
| 2008 | 72° | 53° | 62° | — | — |
| 2007 | 63° | 54° | 58° | — | — |
| 2006 | 73° | 52° | 62° | — | — |
| 2005 | 96° | 54° | 75° | — | — |
| 2004 | 71° | 56° | 63° | — | — |
| 2003 | 99° | 55° | 77° | — | — |
| 2002coldest | 65° | 37° | 51° | — | — |
| 2001 | 83° | 54° | 68° | — | — |
| 2000warmest | 103° | 61° | 82° | — | — |
| 1999 | 71° | 54° | 62° | — | — |
| 1998 | 73° | 52° | 62° | — | — |
| 1997 | 84° | 61° | 72° | — | — |
| 1996 | 80° | 53° | 67° | — | — |
| 1995 | 78° | 51° | 65° | — | — |
| 1994 | 84° | 48° | 66° | — | — |
| 1993 | 77° | 59° | 68° | — | — |
| 1992 | 78° | 58° | 68° | — | — |
| 1991 | 68° | 47° | 57° | — | — |
| 1990 | 80° | 50° | 65° | — | — |
| 1989 | 87° | 52° | 69° | — | — |
| 1988 | 100° | 58° | 79° | — | — |
| 1987 | 74° | 53° | 63° | — | — |
| 1986 | 79° | 56° | 67° | — | — |
| 1985 | 85° | 54° | 69° | — | — |
| 1984 | 84° | 55° | 70° | — | — |
| 1983 | 89° | 54° | 71° | — | — |
| 1982 | 74° | 57° | 65° | — | — |
| 1981 | 73° | 44° | 59° | — | — |
| 1980 | 69° | 51° | 60° | 0.15" | — |
| 1979 | 77° | 59° | 68° | 0.05" | — |
| 1978 | 82° | 53° | 68° | — | — |
| 1977 | 86° | 53° | 70° | — | — |
| 1976 | 78° | 45° | 61° | — | — |
| 1975 | 68° | 43° | 55° | 0.15" | — |
| 1974 | 79° | 47° | 63° | — | — |
| 1973 | 74° | 55° | 64° | — | — |
| 1972 | 72° | 36° | 54° | — | — |
| 1971 | 76° | 49° | 62° | — | — |
55 years of data from MARCH AFB