Weather on May 21
Downey, CA
55 Years of Data
Avg High
77°F
Avg Low
56°F
Warmest
2008
80°F avg
Coldest
2007
57°F avg
About This Date
May 21st in Downey, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 56°F. Over 55 years of records, the warmest May 21st was in 2008 (80°F average), while the coldest was 2007 (57°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 21st dates historically, with the wettest May 21st recording 0.51" of rain. The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
Planning for May 21st in Downey, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 60° | 76° | — | — |
| 2024 | 74° | 53° | 63° | — | — |
| 2023 | 83° | 57° | 70° | — | — |
| 2022 | 70° | 56° | 63° | — | — |
| 2021 | 72° | 49° | 60° | — | — |
| 2020 | 88° | 56° | 72° | — | — |
| 2019 | 66° | 51° | 59° | — | — |
| 2018 | 61° | 55° | 58° | — | — |
| 2017 | 91° | 58° | 74° | — | — |
| 2016 | 69° | 50° | 60° | — | — |
| 2015 | 72° | 53° | 62° | — | — |
| 2014 | 73° | 52° | 62° | — | — |
| 2013 | 81° | 59° | 70° | — | — |
| 2012 | 86° | 56° | 71° | — | — |
| 2011 | 82° | 50° | 66° | — | — |
| 2010 | 75° | 51° | 63° | — | — |
| 2009 | 87° | 61° | 74° | — | — |
| 2008warmest | 99° | 61° | 80° | — | — |
| 2007coldest | 61° | 53° | 57° | — | — |
| 2006 | 80° | 62° | 71° | — | — |
| 2005 | 94° | 57° | 75° | — | — |
| 2004 | 75° | 57° | 66° | — | — |
| 2003 | 94° | 57° | 75° | — | — |
| 2002 | 69° | 47° | 58° | — | — |
| 2001 | 79° | 57° | 68° | — | — |
| 2000 | 90° | 61° | 75° | — | — |
| 1999 | 64° | 53° | 59° | — | — |
| 1998 | 74° | 57° | 65° | — | — |
| 1997 | 79° | 64° | 71° | — | — |
| 1996 | 79° | 57° | 68° | — | — |
| 1995 | 71° | 57° | 64° | — | — |
| 1994 | 81° | 53° | 67° | — | — |
| 1993 | 82° | 60° | 71° | — | — |
| 1992 | 77° | 60° | 69° | — | — |
| 1991 | 72° | 54° | 63° | — | — |
| 1990 | 78° | 54° | 66° | — | — |
| 1989 | 82° | 58° | 70° | — | — |
| 1988 | 82° | 61° | 71° | — | — |
| 1987 | 72° | 52° | 62° | — | — |
| 1986 | 76° | 62° | 69° | — | — |
| 1985 | 78° | 58° | 68° | — | — |
| 1984 | 87° | 51° | 69° | — | — |
| 1983 | 84° | 58° | 71° | — | — |
| 1982 | 74° | 62° | 68° | — | — |
| 1981 | 77° | 50° | 64° | — | — |
| 1980 | 69° | 57° | 63° | 0.51" | — |
| 1979 | 76° | 58° | 67° | — | — |
| 1978 | 73° | 59° | 66° | — | — |
| 1977 | 75° | 60° | 68° | — | — |
| 1976 | 74° | 58° | 66° | — | — |
| 1975 | 68° | 49° | 58° | — | — |
| 1974 | 85° | 51° | 68° | — | — |
| 1973 | 71° | 57° | 64° | — | — |
| 1972 | 71° | 50° | 61° | — | — |
| 1971 | 67° | 56° | 61° | — | — |
55 years of data from MONTEBELLO