Weather on September 23
Corona, CA
55 Years of Data
Avg High
90°F
Avg Low
57°F
Warmest
2009
86°F avg
Coldest
1986
59°F avg
About This Date
September 23rd in Corona, CA typically brings hot fall weather, with average highs around 90°F and lows near 57°F — a 33°F daily swing. Over 45 years of records, the warmest September 23rd was in 2009 (86°F average), while the coldest was 1986 (59°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 23rd dates historically. The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
Planning for September 23rd in Corona, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 61° | 79° | — | — |
| 2024 | 90° | 58° | 74° | — | — |
| 2023 | 82° | 57° | 70° | — | — |
| 2022 | 95° | 55° | 75° | — | — |
| 2021 | 89° | 62° | 76° | — | — |
| 2020 | 91° | 54° | 72° | — | — |
| 2019 | 88° | 56° | 72° | — | — |
| 2018 | 86° | 61° | 73° | — | — |
| 2017 | 77° | 45° | 61° | — | — |
| 2016 | 86° | 43° | 64° | — | — |
| 2015 | 92° | 60° | 76° | — | — |
| 2014 | 95° | 53° | 74° | — | — |
| 2013 | 95° | 45° | 70° | — | — |
| 2012 | 101° | 59° | 80° | — | — |
| 2011 | 88° | 61° | 74° | — | — |
| 2010 | 87° | 53° | 70° | — | — |
| 2009warmest | 105° | 67° | 86° | — | — |
| 2008 | 93° | 59° | 76° | — | — |
| 2007 | 75° | 53° | 64° | — | — |
| 2006 | 89° | 50° | 70° | — | — |
| 2005 | 86° | 59° | 73° | — | — |
| 2004 | 100° | 59° | 80° | — | — |
| 2003 | 95° | 61° | 78° | — | — |
| 2002 | 105° | 63° | 84° | — | — |
| 2001 | 91° | 58° | 74° | — | — |
| 2000 | 78° | 58° | 68° | — | — |
| 1999 | 85° | 61° | 73° | — | — |
| 1998 | 76° | 54° | 65° | — | — |
| 1987 | 89° | 64° | 77° | 0.25" | — |
| 1986coldest | 72° | 47° | 59° | — | — |
| 1985 | 95° | 55° | 75° | — | — |
| 1984 | 80° | 64° | 72° | — | — |
| 1983 | 87° | 66° | 77° | — | — |
| 1982 | 106° | 61° | 83° | — | — |
| 1981 | 81° | 59° | 70° | — | — |
| 1980 | 84° | 49° | 66° | — | — |
| 1979 | 97° | 57° | 77° | — | — |
| 1978 | 104° | 54° | 79° | — | — |
| 1977 | 79° | 52° | 65° | — | — |
| 1976 | 81° | 63° | 72° | — | — |
| 1975 | 104° | 57° | 81° | — | — |
| 1974 | 98° | 60° | 79° | — | — |
| 1973 | 78° | 56° | 67° | — | — |
| 1972 | 89° | 54° | 71° | — | — |
| 1971 | 92° | 49° | 70° | — | — |
45 years of data from CORONA CALIFORNIA