Weather on October 18
Riverside, CA
55 Years of Data
Avg High
83°F
Avg Low
54°F
Warmest
2003
80°F avg
Coldest
1971
51°F avg
About This Date
October 18th in Riverside, CA typically brings warm fall weather, with average highs around 83°F and lows near 54°F — a 29°F daily swing. Over 55 years of records, the warmest October 18th was in 2003 (80°F average), while the coldest was 1971 (51°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 5% of October 18th dates historically, with the wettest October 18th recording 1.52" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Riverside, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 53° | 71° | — | — |
| 2024 | 78° | 57° | 68° | — | — |
| 2023 | 102° | 57° | 80° | — | — |
| 2022 | 94° | 60° | 77° | — | — |
| 2021 | 68° | 52° | 60° | — | — |
| 2020 | 90° | 58° | 74° | — | — |
| 2019 | 83° | 54° | 68° | — | — |
| 2018 | 88° | 53° | 70° | — | — |
| 2017 | 91° | 63° | 77° | — | — |
| 2016 | 80° | 53° | 67° | — | — |
| 2015 | 81° | 67° | 74° | — | — |
| 2014 | 79° | 62° | 70° | — | — |
| 2013 | 90° | 46° | 68° | — | — |
| 2012 | 87° | 65° | 76° | — | — |
| 2011 | 88° | 56° | 72° | — | — |
| 2010 | 70° | 59° | 64° | 0.08" | — |
| 2009 | 89° | 59° | 74° | — | — |
| 2008 | 91° | 54° | 72° | — | — |
| 2007 | 86° | 48° | 67° | — | — |
| 2006 | 80° | 53° | 67° | — | — |
| 2005 | 68° | 55° | 62° | 1.52" | — |
| 2004 | 72° | 57° | 64° | 0.13" | — |
| 2003warmest | 101° | 59° | 80° | — | — |
| 2002 | 72° | 55° | 63° | — | — |
| 2001 | 88° | 56° | 72° | — | — |
| 2000 | 75° | 57° | 66° | — | — |
| 1999 | 90° | 46° | 68° | — | — |
| 1998 | 89° | 48° | 69° | — | — |
| 1997 | 90° | 53° | 71° | — | — |
| 1996 | 83° | 49° | 66° | — | — |
| 1995 | 81° | 52° | 66° | — | — |
| 1994 | 78° | 46° | 62° | — | — |
| 1993 | 75° | 48° | 62° | — | — |
| 1992 | 78° | 53° | 66° | — | — |
| 1991 | 95° | 55° | 75° | — | — |
| 1990 | 83° | 57° | 70° | — | — |
| 1989 | 95° | 51° | 73° | — | — |
| 1988 | 82° | 55° | 69° | — | — |
| 1987 | 71° | 58° | 64° | — | — |
| 1986 | 71° | 51° | 61° | — | — |
| 1985 | 78° | 55° | 67° | — | — |
| 1984 | 74° | 47° | 60° | — | — |
| 1983 | 81° | 55° | 68° | — | — |
| 1982 | 78° | 49° | 63° | — | — |
| 1981 | 88° | 53° | 70° | — | — |
| 1980 | 81° | 50° | 65° | — | — |
| 1979 | 69° | 59° | 64° | — | — |
| 1978 | 79° | 50° | 64° | — | — |
| 1977 | 86° | 53° | 70° | — | — |
| 1976 | 85° | 58° | 71° | — | — |
| 1975 | 87° | 50° | 69° | — | — |
| 1974 | 101° | 54° | 77° | — | — |
| 1973 | 95° | 58° | 76° | — | — |
| 1972 | 71° | 56° | 63° | — | — |
| 1971coldest | 59° | 42° | 51° | — | — |
55 years of data from RIVERSIDE CITRUS EXP