Weather on September 30
Corona, CA
55 Years of Data
Avg High
88°F
Avg Low
55°F
Warmest
2001
85°F avg
Coldest
1971
60°F avg
About This Date
September 30th in Corona, CA typically brings warm fall weather, with average highs around 88°F and lows near 55°F — a 33°F daily swing. Over 45 years of records, the warmest September 30th was in 2001 (85°F average), while the coldest was 1971 (60°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 30th dates historically, with the wettest September 30th recording 1.3" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for September 30th in Corona, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 57° | 69° | — | — |
| 2024 | 94° | 48° | 71° | — | — |
| 2023 | 72° | 58° | 65° | — | — |
| 2022 | 84° | 59° | 72° | — | — |
| 2021 | 95° | 45° | 70° | — | — |
| 2020 | 108° | 55° | 81° | — | — |
| 2019 | 76° | 44° | 60° | — | — |
| 2018 | 90° | 53° | 71° | — | — |
| 2017 | 85° | 49° | 67° | — | — |
| 2016 | 93° | 57° | 75° | — | — |
| 2015 | 93° | 52° | 72° | — | — |
| 2014 | 89° | 49° | 69° | — | — |
| 2013 | 87° | 40° | 63° | — | — |
| 2012 | 100° | 52° | 76° | — | — |
| 2011 | 89° | 59° | 74° | — | — |
| 2010 | 92° | 68° | 80° | — | — |
| 2009 | 86° | 58° | 72° | — | — |
| 2008 | 103° | 67° | 85° | — | — |
| 2007 | 93° | 56° | 74° | — | — |
| 2006 | 87° | 54° | 70° | — | — |
| 2005 | 99° | 64° | 81° | — | — |
| 2004 | 72° | 57° | 64° | — | — |
| 2003 | 85° | 64° | 74° | — | — |
| 2002 | 71° | 54° | 62° | — | — |
| 2001warmest | 105° | 65° | 85° | — | — |
| 2000 | 81° | 55° | 68° | — | — |
| 1999 | 102° | 58° | 80° | — | — |
| 1998 | 77° | 53° | 65° | — | — |
| 1987 | 99° | 60° | 79° | — | — |
| 1986 | 84° | 50° | 67° | — | — |
| 1985 | 83° | 59° | 71° | — | — |
| 1984 | 90° | 56° | 73° | — | — |
| 1983 | 70° | 58° | 64° | 1.3" | — |
| 1982 | 78° | 47° | 62° | — | — |
| 1981 | 82° | 57° | 70° | — | — |
| 1980 | 105° | 54° | 79° | — | — |
| 1979 | 80° | 56° | 68° | — | — |
| 1978 | 94° | 62° | 78° | — | — |
| 1977 | 83° | 58° | 70° | — | — |
| 1976 | 81° | 61° | 71° | — | — |
| 1975 | 83° | 56° | 69° | — | — |
| 1974 | 92° | 56° | 74° | — | — |
| 1973 | 88° | 47° | 67° | — | — |
| 1972 | 94° | 56° | 75° | — | — |
| 1971coldest | 73° | 47° | 60° | — | — |
45 years of data from CORONA CALIFORNIA