Weather on April 20
Irvine, CA
55 Years of Data
Avg High
76°F
Avg Low
49°F
Warmest
2009
86°F avg
Coldest
1972
52°F avg
About This Date
April 20th in Irvine, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 49°F — a 27°F daily swing. Over 55 years of records, the warmest April 20th was in 2009 (86°F average), while the coldest was 1972 (52°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 5% of April 20th dates historically, with the wettest April 20th recording 2.62" 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 April 20th in Irvine, CA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 50° | 61° | — | — |
| 2024 | 73° | 58° | 65° | — | — |
| 2023 | 80° | 43° | 61° | — | — |
| 2022 | 72° | 56° | 64° | — | — |
| 2021 | 83° | 53° | 68° | — | — |
| 2020 | 71° | 51° | 61° | — | — |
| 2019 | 77° | 57° | 67° | — | — |
| 2018 | 80° | 48° | 64° | — | — |
| 2017 | 79° | 54° | 66° | — | — |
| 2016 | 92° | 57° | 74° | — | — |
| 2015 | 76° | 52° | 64° | — | — |
| 2014 | 82° | 51° | 67° | — | — |
| 2013 | 85° | 42° | 63° | — | — |
| 2012 | 85° | 48° | 66° | — | — |
| 2011 | 75° | 53° | 64° | — | — |
| 2010 | 74° | 47° | 60° | — | — |
| 2009warmest | 103° | 69° | 86° | — | — |
| 2008 | 70° | 49° | 59° | — | — |
| 2007 | 67° | 42° | 54° | 1.32" | — |
| 2006 | 83° | 50° | 66° | — | — |
| 2005 | 76° | 45° | 60° | — | — |
| 2004 | 75° | 49° | 62° | — | — |
| 2003 | 73° | 49° | 61° | — | — |
| 2002 | 70° | 45° | 57° | — | — |
| 2001 | 62° | 48° | 55° | — | — |
| 2000 | 75° | 46° | 61° | — | — |
| 1999 | 81° | 53° | 67° | — | — |
| 1998 | 90° | 49° | 69° | — | — |
| 1997 | 83° | 54° | 68° | — | — |
| 1996 | 74° | 46° | 60° | — | — |
| 1995 | 62° | 44° | 53° | — | — |
| 1994 | 76° | 56° | 66° | — | — |
| 1993 | 87° | 47° | 67° | — | — |
| 1992 | 84° | 48° | 66° | — | — |
| 1991 | 68° | 55° | 62° | — | — |
| 1990 | 68° | 56° | 62° | — | — |
| 1989 | 77° | 58° | 67° | — | — |
| 1988 | 61° | 51° | 56° | 2.62" | — |
| 1987 | 76° | 45° | 60° | — | — |
| 1986 | 85° | 48° | 66° | — | — |
| 1985 | 65° | 48° | 56° | — | — |
| 1984 | 72° | 46° | 59° | — | — |
| 1983 | 57° | 51° | 54° | 0.74" | — |
| 1982 | 88° | 48° | 68° | — | — |
| 1981 | 73° | 47° | 60° | — | — |
| 1980 | 82° | 54° | 68° | — | — |
| 1979 | 78° | 44° | 61° | — | — |
| 1978 | 77° | 48° | 63° | — | — |
| 1977 | 79° | 46° | 62° | — | — |
| 1976 | 79° | 47° | 63° | — | — |
| 1975 | 69° | 41° | 55° | — | — |
| 1974 | 68° | 44° | 56° | — | — |
| 1973 | 68° | 43° | 55° | — | — |
| 1972coldest | 68° | 35° | 52° | — | — |
| 1971 | 60° | 47° | 53° | — | — |
55 years of data from IRVINE RCH