Weather on May 21
Long Beach, CA
55 Years of Data
Avg High
74°F
Avg Low
58°F
Warmest
2017
74°F avg
Coldest
1975
58°F avg
About This Date
May 21st in Long Beach, CA typically brings pleasant spring weather, with average highs around 74°F and lows near 58°F. Over 55 years of records, the warmest May 21st was in 2017 (74°F average), while the coldest was 1975 (58°F) — a 16°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 0.66" 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 Long Beach, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 60° | 72° | — | — |
| 2024 | 72° | 58° | 65° | — | — |
| 2023 | 74° | 61° | 67° | — | — |
| 2022 | 69° | 61° | 65° | — | — |
| 2021 | 73° | 56° | 64° | — | — |
| 2020 | 83° | 58° | 70° | — | — |
| 2019 | 69° | 58° | 63° | — | — |
| 2018 | 66° | 60° | 63° | — | — |
| 2017warmest | 87° | 60° | 74° | — | — |
| 2016 | 68° | 57° | 63° | — | — |
| 2015 | 70° | 60° | 65° | — | — |
| 2014 | 72° | 58° | 65° | — | — |
| 2013 | 74° | 62° | 68° | — | — |
| 2012 | 81° | 60° | 70° | — | — |
| 2011 | 70° | 55° | 62° | — | — |
| 2010 | 72° | 57° | 64° | — | — |
| 2009 | 70° | 60° | 65° | — | — |
| 2008 | 75° | 59° | 67° | — | — |
| 2007 | 66° | 60° | 63° | — | — |
| 2006 | 67° | 60° | 63° | 0.66" | — |
| 2005 | 84° | 60° | 72° | — | — |
| 2004 | 69° | 60° | 65° | — | — |
| 2003 | 87° | 56° | 71° | — | — |
| 2002 | 69° | 54° | 61° | — | — |
| 2001 | 71° | 61° | 66° | — | — |
| 2000 | 76° | 61° | 68° | — | — |
| 1999 | 64° | 58° | 61° | — | — |
| 1998 | 73° | 59° | 66° | — | — |
| 1997 | 77° | 64° | 71° | — | — |
| 1996 | 77° | 56° | 66° | — | — |
| 1995 | 67° | 56° | 61° | — | — |
| 1994 | 79° | 53° | 66° | — | — |
| 1993 | 75° | 60° | 68° | — | — |
| 1992 | 73° | 60° | 67° | — | — |
| 1991 | 65° | 56° | 60° | — | — |
| 1990 | 75° | 57° | 66° | — | — |
| 1989 | 80° | 56° | 68° | — | — |
| 1988 | 82° | 61° | 71° | — | — |
| 1987 | 71° | 55° | 63° | — | — |
| 1986 | 70° | 59° | 64° | — | — |
| 1985 | 74° | 59° | 66° | — | — |
| 1984 | 70° | 61° | 65° | — | — |
| 1983 | 78° | 61° | 69° | — | — |
| 1982 | 68° | 62° | 65° | — | — |
| 1981 | 74° | 53° | 63° | — | — |
| 1980 | 71° | 59° | 65° | — | — |
| 1979 | 75° | 58° | 66° | — | — |
| 1978 | 73° | 59° | 66° | — | — |
| 1977 | 75° | 60° | 68° | — | — |
| 1976 | 74° | 58° | 66° | — | — |
| 1975coldest | 68° | 49° | 58° | — | — |
| 1974 | 85° | 51° | 68° | — | — |
| 1973 | 71° | 57° | 64° | — | — |
| 1972 | 71° | 52° | 61° | — | — |
| 1971 | 70° | 54° | 62° | — | — |
55 years of data from LONG BEACH AQUARIUM