Weather on April 20
Riverside, CA
55 Years of Data
Avg High
77°F
Avg Low
49°F
Warmest
2009
81°F avg
Coldest
1972
50°F avg
About This Date
April 20th in Riverside, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 49°F — a 28°F daily swing. Over 55 years of records, the warmest April 20th was in 2009 (81°F average), while the coldest was 1972 (50°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 7% of April 20th dates historically, with the wettest April 20th recording 3.53" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for April 20th 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 | 81° | 48° | 64° | — | — |
| 2024 | 75° | 51° | 63° | — | — |
| 2023 | 86° | 45° | 65° | — | — |
| 2022 | 73° | 53° | 63° | — | — |
| 2021 | 80° | 52° | 66° | — | — |
| 2020 | 68° | 54° | 61° | — | — |
| 2019 | 68° | 54° | 61° | — | — |
| 2018 | 80° | 45° | 62° | — | — |
| 2017 | 82° | 51° | 67° | — | — |
| 2016 | 90° | 53° | 71° | — | — |
| 2015 | 78° | 54° | 66° | — | — |
| 2014 | 85° | 55° | 70° | — | — |
| 2013 | 92° | 46° | 69° | — | — |
| 2012 | 99° | 56° | 77° | — | — |
| 2011 | 71° | 57° | 64° | — | — |
| 2010 | 72° | 50° | 61° | 0.13" | — |
| 2009warmest | 103° | 59° | 81° | — | — |
| 2008 | 65° | 49° | 57° | — | — |
| 2007 | 54° | 48° | 51° | 0.58" | — |
| 2006 | 85° | 46° | 65° | — | — |
| 2005 | 70° | 45° | 57° | — | — |
| 2004 | 75° | 45° | 60° | — | — |
| 2003 | 81° | 49° | 65° | — | — |
| 2002 | 73° | 46° | 60° | — | — |
| 2001 | 65° | 43° | 54° | — | — |
| 2000 | 85° | 48° | 66° | — | — |
| 1999 | 83° | 52° | 67° | — | — |
| 1998 | 94° | 50° | 72° | — | — |
| 1997 | 87° | 52° | 69° | — | — |
| 1996 | 74° | 45° | 59° | — | — |
| 1995 | 59° | 42° | 51° | — | — |
| 1994 | 83° | 54° | 68° | — | — |
| 1993 | 89° | 52° | 70° | — | — |
| 1992 | 85° | 51° | 68° | — | — |
| 1991 | 69° | 46° | 58° | — | — |
| 1990 | 71° | 56° | 63° | — | — |
| 1989 | 88° | 53° | 70° | — | — |
| 1988 | 56° | 49° | 52° | 2.06" | — |
| 1987 | 85° | 44° | 64° | — | — |
| 1986 | 91° | 48° | 70° | — | — |
| 1985 | 63° | 50° | 56° | — | — |
| 1984 | 73° | 41° | 57° | — | — |
| 1983 | 60° | 52° | 56° | 3.53" | — |
| 1982 | 83° | 52° | 67° | — | — |
| 1981 | 65° | 49° | 57° | — | — |
| 1980 | 79° | 50° | 64° | — | — |
| 1979 | 82° | 46° | 64° | — | — |
| 1978 | 77° | 48° | 63° | — | — |
| 1977 | 83° | 46° | 64° | — | — |
| 1976 | 86° | 49° | 67° | — | — |
| 1975 | 72° | 45° | 58° | — | — |
| 1974 | 71° | 44° | 58° | — | — |
| 1973 | 66° | 44° | 55° | — | — |
| 1972coldest | 62° | 38° | 50° | — | — |
| 1971 | 62° | 47° | 54° | — | — |
55 years of data from RIVERSIDE CITRUS EXP