Weather on April 18
Riverside, CA
55 Years of Data
Avg High
75°F
Avg Low
50°F
Warmest
1994
74°F avg
Coldest
1971
50°F avg
About This Date
April 18th in Riverside, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 50°F — a 25°F daily swing. Over 55 years of records, the warmest April 18th was in 1994 (74°F average), while the coldest was 1971 (50°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 13% of April 18th dates historically, with the wettest April 18th recording 0.76" of rain. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
Planning for April 18th in Riverside, CA? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 51° | 55° | — | — |
| 2024 | 78° | 52° | 65° | — | — |
| 2023 | 67° | 50° | 58° | — | — |
| 2022 | 84° | 52° | 68° | — | — |
| 2021 | 86° | 48° | 67° | — | — |
| 2020 | 64° | 53° | 59° | — | — |
| 2019 | 90° | 51° | 70° | — | — |
| 2018 | 77° | 46° | 62° | — | — |
| 2017 | 79° | 61° | 70° | — | — |
| 2016 | 90° | 54° | 72° | — | — |
| 2015 | 84° | 51° | 68° | — | — |
| 2014 | 75° | 58° | 66° | — | — |
| 2013 | 78° | 48° | 63° | — | — |
| 2012 | 86° | 52° | 69° | — | — |
| 2011 | 69° | 57° | 63° | — | — |
| 2010 | 81° | 51° | 66° | — | — |
| 2009 | 90° | 46° | 68° | — | — |
| 2008 | 84° | 52° | 68° | — | — |
| 2007 | 75° | 51° | 63° | — | — |
| 2006 | 81° | 44° | 62° | — | — |
| 2005 | 63° | 53° | 58° | — | — |
| 2004 | 70° | 47° | 58° | — | — |
| 2003 | 66° | 50° | 58° | — | — |
| 2002 | 69° | 44° | 57° | — | — |
| 2001 | 77° | 51° | 64° | — | — |
| 2000 | 63° | 47° | 55° | 0.61" | — |
| 1999 | 94° | 53° | 73° | — | — |
| 1998 | 83° | 44° | 63° | — | — |
| 1997 | 82° | 47° | 64° | — | — |
| 1996 | 71° | 52° | 61° | 0.15" | — |
| 1995 | 55° | 46° | 51° | 0.76" | — |
| 1994warmest | 88° | 60° | 74° | — | — |
| 1993 | 73° | 52° | 62° | — | — |
| 1992 | 88° | 54° | 71° | — | — |
| 1991 | 70° | 42° | 56° | — | — |
| 1990 | 71° | 52° | 61° | — | — |
| 1989 | 83° | 51° | 67° | — | — |
| 1988 | 67° | 54° | 60° | — | — |
| 1987 | 73° | 52° | 62° | — | — |
| 1986 | 79° | 44° | 61° | — | — |
| 1985 | 61° | 52° | 56° | — | — |
| 1984 | 75° | 52° | 63° | — | — |
| 1983 | 67° | 53° | 60° | 0.69" | — |
| 1982 | 80° | 47° | 63° | — | — |
| 1981 | 58° | 50° | 54° | 0.48" | — |
| 1980 | 91° | 53° | 72° | — | — |
| 1979 | 68° | 44° | 56° | — | — |
| 1978 | 73° | 47° | 60° | — | — |
| 1977 | 81° | 53° | 67° | — | — |
| 1976 | 69° | 41° | 55° | — | — |
| 1975 | 58° | 42° | 50° | 0.05" | — |
| 1974 | 80° | 51° | 66° | — | — |
| 1973 | 66° | 44° | 55° | — | — |
| 1972 | 73° | 51° | 62° | — | — |
| 1971coldest | 57° | 43° | 50° | 0.18" | — |
55 years of data from RIVERSIDE CITRUS EXP