Weather on August 21
Downey, CA
55 Years of Data
Avg High
87°F
Avg Low
64°F
Warmest
1982
84°F avg
Coldest
2012
66°F avg
About This Date
August 21st in Downey, CA typically brings warm summer weather, with average highs around 87°F and lows near 64°F. Over 55 years of records, the warmest August 21st was in 1982 (84°F average), while the coldest was 2012 (66°F) — a 18°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 August 21st in Downey, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 69° | 83° | — | — |
| 2024 | 95° | 64° | 80° | — | — |
| 2023 | 81° | 61° | 71° | — | — |
| 2022 | 83° | 62° | 72° | — | — |
| 2021 | 73° | 61° | 67° | — | — |
| 2020 | 94° | 69° | 81° | — | — |
| 2019 | 94° | 65° | 79° | — | — |
| 2018 | 86° | 66° | 76° | — | — |
| 2017 | 84° | 62° | 73° | — | — |
| 2016 | 85° | 64° | 74° | — | — |
| 2015 | 86° | 64° | 75° | — | — |
| 2014 | 86° | 61° | 73° | — | — |
| 2013 | 91° | 62° | 77° | — | — |
| 2012coldest | 67° | 65° | 66° | — | — |
| 2011 | 88° | 58° | 73° | — | — |
| 2010 | 88° | 57° | 72° | — | — |
| 2009 | 86° | 62° | 74° | — | — |
| 2008 | 85° | 60° | 72° | — | — |
| 2007 | 98° | 66° | 82° | — | — |
| 2006 | 90° | 61° | 75° | — | — |
| 2005 | 90° | 61° | 75° | — | — |
| 2004 | 83° | 65° | 74° | — | — |
| 2003 | 92° | 65° | 78° | — | — |
| 2002 | 79° | 62° | 70° | — | — |
| 2001 | 92° | 63° | 77° | — | — |
| 2000 | 88° | 66° | 77° | — | — |
| 1999 | 90° | 61° | 75° | — | — |
| 1998 | 94° | 62° | 78° | — | — |
| 1997 | 90° | 69° | 79° | — | — |
| 1996 | 94° | 60° | 77° | — | — |
| 1995 | 86° | 64° | 75° | — | — |
| 1994 | 87° | 68° | 78° | — | — |
| 1993 | 89° | 62° | 76° | — | — |
| 1992 | 91° | 68° | 80° | — | — |
| 1991 | 90° | 62° | 76° | — | — |
| 1990 | 86° | 62° | 74° | — | — |
| 1989 | 80° | 64° | 72° | — | — |
| 1988 | 80° | 62° | 71° | — | — |
| 1987 | 84° | 60° | 72° | — | — |
| 1986 | 96° | 70° | 83° | — | — |
| 1985 | 86° | 66° | 76° | — | — |
| 1984 | 87° | 71° | 79° | — | — |
| 1983 | 81° | 65° | 73° | — | — |
| 1982warmest | 98° | 70° | 84° | — | — |
| 1981 | 99° | 59° | 79° | — | — |
| 1980 | 86° | 58° | 72° | — | — |
| 1979 | 85° | 61° | 73° | — | — |
| 1978 | 80° | 60° | 70° | — | — |
| 1977 | 79° | 68° | 73° | — | — |
| 1976 | 86° | 63° | 74° | — | — |
| 1975 | 77° | 64° | 71° | — | — |
| 1974 | 79° | 65° | 72° | — | — |
| 1973 | 90° | 68° | 79° | — | — |
| 1972 | 94° | 60° | 77° | — | — |
| 1971 | 83° | 72° | 77° | — | — |
55 years of data from MONTEBELLO