Weather on May 21
Concord, CA
55 Years of Data
Avg High
79°F
Avg Low
52°F
Warmest
2000
80°F avg
Coldest
1971
56°F avg
About This Date
May 21st in Concord, 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 (80°F average), while the coldest was 1971 (56°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 9% of May 21st dates historically, with the wettest May 21st recording 1.37" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 21st in Concord, CA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 55° | 72° | — | — |
| 2024 | 88° | 52° | 70° | — | — |
| 2023 | 82° | 54° | 68° | — | — |
| 2022 | 86° | 52° | 69° | — | — |
| 2021 | 74° | 48° | 61° | — | — |
| 2020 | 83° | 54° | 68° | — | — |
| 2019 | 67° | 54° | 60° | 0.05" | — |
| 2018 | 79° | 54° | 66° | — | — |
| 2017 | 95° | 57° | 76° | — | — |
| 2016 | 68° | 53° | 61° | — | — |
| 2015 | 71° | 56° | 63° | — | — |
| 2014 | 82° | 55° | 69° | — | — |
| 2013 | 74° | 52° | 63° | — | — |
| 2012 | 75° | 53° | 64° | — | — |
| 2011 | 73° | 53° | 63° | — | — |
| 2010 | 65° | 49° | 57° | — | — |
| 2009 | 82° | 48° | 65° | — | — |
| 2008 | 76° | 52° | 64° | — | — |
| 2007 | 86° | 54° | 70° | — | — |
| 2006 | 70° | 53° | 61° | 1.37" | — |
| 2005 | 82° | 51° | 67° | — | — |
| 2004 | 68° | 54° | 61° | — | — |
| 2003 | 91° | 55° | 73° | — | — |
| 2002 | 64° | 49° | 56° | 0.2" | — |
| 2001 | 92° | 61° | 76° | — | — |
| 2000warmest | 100° | 61° | 80° | — | — |
| 1999 | 83° | 49° | 66° | — | — |
| 1998 | 69° | 48° | 59° | — | — |
| 1997 | 82° | 54° | 68° | — | — |
| 1996 | 71° | 54° | 62° | 0.05" | — |
| 1995 | 68° | 54° | 61° | — | — |
| 1994 | 72° | 59° | 65° | — | — |
| 1993 | 72° | 60° | 66° | — | — |
| 1992 | 85° | 55° | 70° | — | — |
| 1991 | 85° | 49° | 67° | — | — |
| 1990 | 77° | 49° | 63° | 0.3" | — |
| 1989 | 72° | 47° | 59° | — | — |
| 1988 | 95° | 56° | 75° | — | — |
| 1987 | 74° | 52° | 63° | — | — |
| 1986 | 74° | 47° | 60° | — | — |
| 1985 | 90° | 57° | 73° | — | — |
| 1984 | 84° | 44° | 64° | — | — |
| 1983 | 88° | 55° | 71° | — | — |
| 1982 | 80° | 47° | 63° | — | — |
| 1981 | 78° | 49° | 63° | — | — |
| 1980 | 77° | 60° | 69° | — | — |
| 1979 | 69° | 56° | 62° | — | — |
| 1978 | 72° | 52° | 62° | — | — |
| 1977 | 82° | 48° | 65° | — | — |
| 1976 | 79° | 47° | 63° | — | — |
| 1975 | 82° | 41° | 62° | — | — |
| 1974 | 75° | 42° | 59° | — | — |
| 1973 | 77° | 42° | 60° | — | — |
| 1972 | 72° | 52° | 62° | — | — |
| 1971coldest | 73° | 39° | 56° | — | — |
55 years of data from CONCORD BUCHANAN FLD