Weather on August 9
Riverside, CA
55 Years of Data
Avg High
95°F
Avg Low
63°F
Warmest
2012
89°F avg
Coldest
1999
70°F avg
About This Date
August 9th in Riverside, CA typically brings hot summer weather, with average highs around 95°F and lows near 63°F — a 32°F daily swing. Over 55 years of records, the warmest August 9th was in 2012 (89°F average), while the coldest was 1999 (70°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 9th dates historically, with the wettest August 9th recording 1.27" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for August 9th in Riverside, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 96° | 65° | 80° | — | — |
| 2024 | 98° | 66° | 82° | — | — |
| 2023 | 90° | 68° | 79° | — | — |
| 2022 | 101° | 73° | 87° | — | — |
| 2021 | 95° | 63° | 79° | — | — |
| 2020 | 94° | 62° | 78° | — | — |
| 2019 | 94° | 62° | 78° | — | — |
| 2018 | 104° | 70° | 87° | — | — |
| 2017 | 97° | 65° | 81° | — | — |
| 2016 | 91° | 63° | 77° | — | — |
| 2015 | 85° | 61° | 73° | — | — |
| 2014 | 93° | 63° | 78° | — | — |
| 2013 | 87° | 58° | 72° | — | — |
| 2012warmest | 105° | 73° | 89° | — | — |
| 2011 | 90° | 58° | 74° | — | — |
| 2010 | 87° | 56° | 71° | — | — |
| 2009 | 92° | 58° | 75° | — | — |
| 2008 | 89° | 66° | 78° | — | — |
| 2007 | 95° | 57° | 76° | — | — |
| 2006 | 104° | 63° | 83° | — | — |
| 2005 | 99° | 66° | 82° | — | — |
| 2004 | 101° | 64° | 82° | — | — |
| 2003 | 104° | 66° | 85° | — | — |
| 2002 | 105° | 58° | 81° | — | — |
| 2001 | 96° | 62° | 79° | — | — |
| 2000 | 97° | 62° | 79° | — | — |
| 1999coldest | 87° | 54° | 70° | — | — |
| 1998 | 103° | 66° | 84° | 1.27" | — |
| 1997 | 86° | 65° | 75° | — | — |
| 1996 | 101° | 62° | 81° | — | — |
| 1995 | 98° | 65° | 81° | — | — |
| 1994 | 100° | 68° | 84° | — | — |
| 1993 | 95° | 65° | 80° | — | — |
| 1992 | 102° | 62° | 82° | — | — |
| 1991 | 98° | 60° | 79° | — | — |
| 1990 | 95° | 65° | 80° | — | — |
| 1989 | 93° | 65° | 79° | — | — |
| 1988 | 88° | 58° | 73° | — | — |
| 1987 | 94° | 58° | 76° | — | — |
| 1986 | 95° | 62° | 79° | — | — |
| 1985 | 91° | 61° | 76° | — | — |
| 1984 | 90° | 65° | 77° | — | — |
| 1983 | 90° | 73° | 81° | 0.3" | — |
| 1982 | 98° | 60° | 79° | — | — |
| 1981 | 99° | 65° | 82° | — | — |
| 1980 | 104° | 64° | 84° | — | — |
| 1979 | 100° | 64° | 82° | — | — |
| 1978 | 95° | 68° | 82° | — | — |
| 1977 | 97° | 57° | 77° | — | — |
| 1976 | 94° | 57° | 75° | — | — |
| 1975 | 100° | 66° | 83° | — | — |
| 1974 | 86° | 64° | 75° | — | — |
| 1973 | 89° | 58° | 73° | — | — |
| 1972 | 92° | 67° | 79° | — | — |
| 1971 | 103° | 68° | 85° | — | — |
55 years of data from RIVERSIDE CITRUS EXP