Weather on April 21
Garden Grove, CA
55 Years of Data
Avg High
75°F
Avg Low
54°F
Warmest
2009
87°F avg
Coldest
2001
54°F avg
About This Date
April 21st in Garden Grove, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 54°F. Over 55 years of records, the warmest April 21st was in 2009 (87°F average), while the coldest was 2001 (54°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 9% of April 21st dates historically, with the wettest April 21st recording 0.51" of rain. The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in Garden Grove, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 54° | 63° | — | — |
| 2024 | 76° | 57° | 66° | — | — |
| 2023 | 91° | 56° | 73° | — | — |
| 2022 | 71° | 52° | 61° | — | — |
| 2021 | 69° | 57° | 63° | — | — |
| 2020 | 74° | 57° | 65° | — | — |
| 2019 | 71° | 55° | 63° | — | — |
| 2018 | 86° | 54° | 70° | — | — |
| 2017 | 87° | 58° | 72° | — | — |
| 2016 | 83° | 59° | 71° | — | — |
| 2015 | 68° | 59° | 64° | — | — |
| 2014 | 79° | 58° | 68° | — | — |
| 2013 | 77° | 56° | 66° | — | — |
| 2012 | 76° | 61° | 68° | — | — |
| 2011 | 71° | 56° | 63° | — | — |
| 2010 | 64° | 51° | 58° | 0.08" | — |
| 2009warmest | 99° | 75° | 87° | — | — |
| 2008 | 71° | 43° | 57° | — | — |
| 2007 | 68° | 46° | 57° | 0.15" | — |
| 2006 | 74° | 56° | 65° | — | — |
| 2005 | 80° | 50° | 65° | — | — |
| 2004 | 71° | 56° | 63° | — | — |
| 2003 | 73° | 54° | 63° | — | — |
| 2002 | 70° | 41° | 55° | — | — |
| 2001coldest | 62° | 47° | 54° | 0.51" | — |
| 2000 | 76° | 53° | 64° | — | — |
| 1999 | 73° | 55° | 64° | — | — |
| 1998 | 86° | 56° | 71° | — | — |
| 1997 | 77° | 52° | 64° | — | — |
| 1996 | 71° | 51° | 61° | — | — |
| 1995 | 70° | 45° | 57° | — | — |
| 1994 | 67° | 58° | 62° | — | — |
| 1993 | 86° | 56° | 71° | — | — |
| 1992 | 79° | 57° | 68° | — | — |
| 1991 | 67° | 55° | 61° | — | — |
| 1990 | 73° | 58° | 65° | — | — |
| 1989 | 75° | 60° | 68° | — | — |
| 1988 | 65° | 51° | 58° | 0.1" | — |
| 1987 | 93° | 50° | 72° | — | — |
| 1986 | 87° | 57° | 72° | — | — |
| 1985 | 60° | 50° | 55° | — | — |
| 1984 | 82° | 49° | 65° | — | — |
| 1983 | 68° | 53° | 61° | 0.15" | — |
| 1982 | 85° | 70° | 77° | — | — |
| 1981 | 74° | 51° | 62° | — | — |
| 1980 | 74° | 54° | 64° | — | — |
| 1979 | 77° | 49° | 63° | — | — |
| 1978 | 70° | 55° | 62° | — | — |
| 1977 | 81° | 52° | 66° | — | — |
| 1976 | 82° | 52° | 67° | — | — |
| 1975 | 70° | 51° | 60° | — | — |
| 1974 | 78° | 50° | 64° | — | — |
| 1973 | 76° | 45° | 60° | — | — |
| 1972 | 78° | 46° | 62° | — | — |
| 1971 | 63° | 47° | 55° | — | — |
55 years of data from SANTA ANA FIRE STN