Weather on August 21
Corona, CA
55 Years of Data
Avg High
91°F
Avg Low
61°F
Warmest
1982
90°F avg
Coldest
1975
68°F avg
About This Date
August 21st in Corona, CA typically brings hot summer weather, with average highs around 91°F and lows near 61°F — a 30°F daily swing. Over 45 years of records, the warmest August 21st was in 1982 (90°F average), while the coldest was 1975 (68°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 21st dates historically. 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 Corona, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 61° | 80° | — | — |
| 2024 | 97° | 54° | 75° | — | — |
| 2023 | 82° | 63° | 72° | 0.43" | — |
| 2022 | 84° | 63° | 73° | — | — |
| 2021 | 75° | 65° | 70° | — | — |
| 2020 | 96° | 67° | 81° | — | — |
| 2019 | 95° | 54° | 74° | — | — |
| 2018 | 90° | 62° | 76° | — | — |
| 2017 | 86° | 59° | 73° | — | — |
| 2016 | 91° | 59° | 75° | — | — |
| 2015 | 85° | 62° | 73° | — | — |
| 2014 | 92° | 64° | 78° | — | — |
| 2013 | 96° | 56° | 76° | — | — |
| 2012 | 93° | 69° | 81° | 0.03" | — |
| 2011 | 86° | 57° | 72° | — | — |
| 2010 | 97° | 65° | 81° | — | — |
| 2009 | 84° | 78° | 81° | — | — |
| 2008 | 89° | 61° | 75° | — | — |
| 2007 | 100° | 64° | 82° | — | — |
| 2006 | 94° | 57° | 75° | — | — |
| 2005 | 93° | 61° | 77° | — | — |
| 2004 | 84° | 61° | 72° | — | — |
| 2003 | 90° | 66° | 78° | — | — |
| 2002 | 82° | 61° | 71° | — | — |
| 2001 | 86° | 61° | 73° | — | — |
| 2000 | 91° | 58° | 74° | — | — |
| 1999 | 100° | 59° | 80° | — | — |
| 1998 | 100° | 59° | 80° | — | — |
| 1987 | 88° | 52° | 70° | — | — |
| 1986 | 100° | 64° | 82° | — | — |
| 1985 | 92° | 57° | 74° | — | — |
| 1984 | 89° | 70° | 79° | — | — |
| 1983 | 85° | 70° | 77° | — | — |
| 1982warmest | 108° | 72° | 90° | — | — |
| 1981 | 101° | 62° | 81° | — | — |
| 1980 | 89° | 54° | 71° | — | — |
| 1979 | 88° | 55° | 71° | — | — |
| 1978 | 89° | 52° | 70° | — | — |
| 1977 | 90° | 65° | 77° | — | — |
| 1976 | 89° | 57° | 73° | — | — |
| 1975coldest | 81° | 56° | 68° | — | — |
| 1974 | 85° | 54° | 69° | — | — |
| 1973 | 92° | 65° | 78° | — | — |
| 1972 | 100° | 56° | 78° | — | — |
| 1971 | — | 59° | — | — | — |
45 years of data from CORONA CALIFORNIA