Weather on May 21
Murrieta, CA
55 Years of Data
Avg High
77°F
Avg Low
52°F
Warmest
2003
81°F avg
Coldest
2002
53°F avg
About This Date
May 21st in Murrieta, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 52°F — a 25°F daily swing. Over 54 years of records, the warmest May 21st was in 2003 (81°F average), while the coldest was 2002 (53°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.9°F cooler on this date compared to 20-30 years ago.
Planning for May 21st in Murrieta, CA? Great weather for outdoor activities.
Cooling Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 63° | 75° | — | — |
| 2024 | 70° | 49° | 59° | — | — |
| 2023 | 78° | 53° | 66° | — | — |
| 2022 | 65° | 52° | 58° | — | — |
| 2021 | 64° | 47° | 55° | — | — |
| 2020 | 84° | 53° | 69° | — | — |
| 2019 | 59° | 48° | 54° | — | — |
| 2018 | 63° | 50° | 56° | — | — |
| 2017 | 96° | 59° | 78° | — | — |
| 2016 | 63° | 48° | 55° | — | — |
| 2015 | 62° | 50° | 56° | — | — |
| 2014 | 68° | 49° | 58° | — | — |
| 2013 | 81° | 55° | 68° | — | — |
| 2012 | 85° | 61° | 73° | — | — |
| 2011 | 75° | 51° | 63° | — | — |
| 2010 | 68° | 49° | 58° | — | — |
| 2009 | 77° | 54° | 65° | — | — |
| 2008 | 66° | 50° | 58° | — | — |
| 2007 | 57° | 49° | 53° | — | — |
| 2006 | 67° | 52° | 59° | — | — |
| 2005 | 89° | 66° | 78° | — | — |
| 2004 | 67° | 50° | 58° | — | — |
| 2003warmest | 95° | 67° | 81° | — | — |
| 2002coldest | 62° | 45° | 53° | — | — |
| 2001 | 76° | 55° | 65° | — | — |
| 2000 | 96° | 59° | 78° | — | — |
| 1999 | 63° | 47° | 55° | — | — |
| 1998 | 69° | 48° | 59° | — | — |
| 1997 | 78° | 54° | 66° | — | — |
| 1996 | 69° | 53° | 61° | — | — |
| 1995 | 66° | 50° | 58° | — | — |
| 1994 | 75° | 49° | 62° | — | — |
| 1993 | 81° | 61° | 71° | — | — |
| 1992 | 78° | 55° | 67° | — | — |
| 1991 | 76° | 51° | 63° | — | — |
| 1990 | 84° | 49° | 66° | — | — |
| 1989 | 89° | 50° | 70° | — | — |
| 1988 | 98° | 56° | 77° | — | — |
| 1987 | 72° | 48° | 60° | — | — |
| 1986 | 78° | 53° | 66° | — | — |
| 1984 | 86° | 50° | 68° | — | — |
| 1983 | 91° | 54° | 72° | — | — |
| 1982 | 82° | 56° | 69° | — | — |
| 1981 | 77° | 43° | 60° | — | — |
| 1980 | — | 56° | — | — | — |
| 1979 | 78° | 54° | 66° | — | — |
| 1978 | 84° | 53° | 69° | — | — |
| 1977 | 87° | 50° | 69° | — | — |
| 1976 | 80° | 48° | 64° | — | — |
| 1975 | 72° | 39° | 55° | — | — |
| 1974 | 91° | 44° | 68° | — | — |
| 1973 | 80° | 55° | 68° | — | — |
| 1972 | 75° | 37° | 56° | — | — |
| 1971 | 83° | 44° | 63° | — | — |
54 years of data from SANTA ROSA PLATEAU CALIFORNIA