Weather on August 18
Corona, CA
55 Years of Data
Avg High
90°F
Avg Low
62°F
Warmest
2020
88°F avg
Coldest
1975
68°F avg
About This Date
August 18th in Corona, CA typically brings hot summer weather, with average highs around 90°F and lows near 62°F — a 28°F daily swing. Over 45 years of records, the warmest August 18th was in 2020 (88°F average), while the coldest was 1975 (68°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 18th dates historically. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for August 18th in Corona, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 57° | 73° | — | — |
| 2024 | 91° | 57° | 74° | — | — |
| 2023 | 92° | 57° | 74° | — | — |
| 2022 | 93° | 66° | 80° | — | — |
| 2021 | 78° | 67° | 72° | — | — |
| 2020warmest | 107° | 69° | 88° | — | — |
| 2019 | 87° | 58° | 72° | — | — |
| 2018 | 92° | 65° | 78° | — | — |
| 2017 | 86° | 58° | 72° | — | — |
| 2016 | 93° | 60° | 77° | — | — |
| 2015 | 88° | 60° | 74° | — | — |
| 2014 | 93° | 60° | 77° | — | — |
| 2013 | 88° | 58° | 73° | — | — |
| 2012 | 99° | 75° | 87° | — | — |
| 2011 | 94° | 63° | 78° | — | — |
| 2010 | 99° | 73° | 86° | — | — |
| 2009 | 90° | 59° | 74° | — | — |
| 2008 | 89° | 64° | 77° | — | — |
| 2007 | 101° | 68° | 84° | — | — |
| 2006 | 92° | 58° | 75° | — | — |
| 2005 | 88° | 58° | 73° | — | — |
| 2004 | 88° | 62° | 75° | — | — |
| 2003 | 96° | 66° | 81° | — | — |
| 2002 | 83° | 64° | 73° | — | — |
| 2001 | 101° | 66° | 83° | — | — |
| 2000 | 96° | 64° | 80° | — | — |
| 1999 | 95° | 62° | 79° | — | — |
| 1998 | 89° | 59° | 74° | — | — |
| 1987 | 83° | 56° | 69° | — | — |
| 1986 | 102° | 62° | 82° | — | — |
| 1985 | 85° | 58° | 71° | — | — |
| 1984 | 82° | 70° | 76° | — | — |
| 1983 | 75° | 69° | 72° | 0.25" | — |
| 1982 | — | 56° | — | — | — |
| 1981 | 86° | 64° | 75° | — | — |
| 1980 | 83° | 59° | 71° | — | — |
| 1979 | 84° | 63° | 73° | — | — |
| 1978 | 89° | 51° | 70° | — | — |
| 1977 | 81° | 64° | 72° | 0.13" | — |
| 1976 | 82° | 55° | 69° | — | — |
| 1975coldest | 83° | 53° | 68° | — | — |
| 1974 | 90° | 58° | 74° | — | — |
| 1973 | 97° | 61° | 79° | — | — |
| 1972 | 81° | 57° | 69° | — | — |
| 1971 | 93° | 63° | 78° | — | — |
45 years of data from CORONA CALIFORNIA