Weather on September 8
Riverside, CA
55 Years of Data
Avg High
93°F
Avg Low
63°F
Warmest
2024
95°F avg
Coldest
1978
66°F avg
About This Date
September 8th in Riverside, CA typically brings hot fall weather, with average highs around 93°F and lows near 63°F — a 30°F daily swing. Over 55 years of records, the warmest September 8th was in 2024 (95°F average), while the coldest was 1978 (66°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 8th dates historically. The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
Planning for September 8th in Riverside, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 67° | 81° | — | — |
| 2024warmest | 110° | 80° | 95° | — | — |
| 2023 | 100° | 66° | 83° | — | — |
| 2022 | 100° | 75° | 88° | 0.08" | — |
| 2021 | 96° | 67° | 81° | — | — |
| 2020 | 83° | 67° | 75° | — | — |
| 2019 | 85° | 61° | 73° | — | — |
| 2018 | 103° | 65° | 84° | — | — |
| 2017 | 93° | 66° | 80° | — | — |
| 2016 | 89° | 62° | 76° | — | — |
| 2015 | 104° | 72° | 88° | — | — |
| 2014 | 86° | 69° | 78° | — | — |
| 2013 | 97° | 71° | 84° | — | — |
| 2012 | 98° | 68° | 83° | — | — |
| 2011 | 103° | 70° | 86° | — | — |
| 2010 | 72° | 60° | 66° | — | — |
| 2009 | 93° | 59° | 76° | — | — |
| 2008 | 94° | 61° | 77° | — | — |
| 2007 | 91° | 58° | 74° | — | — |
| 2006 | 91° | 61° | 76° | — | — |
| 2005 | 90° | 55° | 72° | — | — |
| 2004 | 103° | 64° | 83° | — | — |
| 2003 | 90° | 60° | 75° | — | — |
| 2002 | 89° | 52° | 70° | — | — |
| 2001 | 83° | 62° | 72° | — | — |
| 2000 | 95° | 59° | 77° | — | — |
| 1999 | 93° | 55° | 74° | — | — |
| 1998 | 91° | 63° | 77° | — | — |
| 1997 | 99° | 63° | 81° | — | — |
| 1996 | 98° | 64° | 81° | — | — |
| 1995 | 92° | 63° | 77° | — | — |
| 1994 | 96° | 58° | 77° | — | — |
| 1993 | 103° | 60° | 81° | — | — |
| 1992 | 90° | 56° | 73° | — | — |
| 1991 | 86° | 55° | 71° | — | — |
| 1990 | 100° | 64° | 82° | — | — |
| 1989 | 88° | 49° | 68° | — | — |
| 1988 | 90° | 63° | 76° | — | — |
| 1987 | 94° | 56° | 75° | — | — |
| 1986 | 90° | 59° | 74° | — | — |
| 1985 | 79° | 58° | 68° | — | — |
| 1984 | 103° | 68° | 85° | — | — |
| 1983 | 97° | 66° | 81° | — | — |
| 1982 | 77° | 68° | 73° | 0.03" | — |
| 1981 | 98° | 66° | 82° | — | — |
| 1980 | 77° | 60° | 69° | — | — |
| 1979 | 109° | 67° | 88° | — | — |
| 1978coldest | 79° | 53° | 66° | — | — |
| 1977 | 104° | 66° | 85° | — | — |
| 1976 | 98° | 62° | 80° | — | — |
| 1975 | 93° | 65° | 79° | — | — |
| 1974 | 97° | 64° | 80° | — | — |
| 1973 | 91° | 61° | 76° | — | — |
| 1972 | 82° | 67° | 74° | — | — |
| 1971 | 97° | 66° | 81° | — | — |
55 years of data from RIVERSIDE CITRUS EXP