Weather on July 21
Garden Grove, CA
55 Years of Data
Avg High
83°F
Avg Low
64°F
Warmest
2016
82°F avg
Coldest
1991
66°F avg
About This Date
July 21st in Garden Grove, CA typically brings warm summer weather, with average highs around 83°F and lows near 64°F. Over 55 years of records, the warmest July 21st was in 2016 (82°F average), while the coldest was 1991 (66°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 2% of July 21st dates historically. The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for July 21st in Garden Grove, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 66° | 73° | — | — |
| 2024 | 86° | 66° | 76° | — | — |
| 2023 | 82° | 65° | 73° | — | — |
| 2022 | 84° | 66° | 75° | — | — |
| 2021 | 89° | 68° | 79° | — | — |
| 2020 | 83° | 63° | 73° | — | — |
| 2019 | 86° | 64° | 75° | — | — |
| 2018 | 87° | 69° | 78° | — | — |
| 2017 | 85° | 67° | 76° | — | — |
| 2016warmest | 96° | 68° | 82° | — | — |
| 2015 | 83° | 70° | 76° | 0.08" | — |
| 2014 | 81° | 66° | 73° | — | — |
| 2013 | 72° | 65° | 68° | — | — |
| 2012 | 88° | 64° | 76° | — | — |
| 2011 | 80° | 63° | 71° | — | — |
| 2010 | 78° | 64° | 71° | — | — |
| 2009 | 90° | 68° | 79° | — | — |
| 2008 | 84° | 59° | 72° | — | — |
| 2007 | 83° | 64° | 73° | — | — |
| 2006 | 93° | 68° | 81° | — | — |
| 2005 | 93° | 60° | 77° | — | — |
| 2004 | 87° | 64° | 76° | — | — |
| 2003 | 89° | 65° | 77° | — | — |
| 2002 | 76° | 61° | 68° | — | — |
| 2001 | 79° | 61° | 70° | — | — |
| 2000 | 82° | 63° | 72° | — | — |
| 1999 | 81° | 58° | 69° | — | — |
| 1998 | 82° | 65° | 73° | — | — |
| 1997 | 77° | 60° | 69° | — | — |
| 1996 | 83° | 64° | 73° | — | — |
| 1995 | 81° | 59° | 70° | — | — |
| 1994 | 81° | 62° | 71° | — | — |
| 1993 | 78° | 66° | 72° | — | — |
| 1992 | 80° | 66° | 73° | — | — |
| 1991coldest | 76° | 57° | 66° | — | — |
| 1990 | 88° | 66° | 77° | — | — |
| 1989 | 82° | 62° | 72° | — | — |
| 1988 | 91° | 71° | 81° | — | — |
| 1987 | 75° | 61° | 68° | — | — |
| 1986 | 83° | 64° | 73° | — | — |
| 1985 | 84° | 66° | 75° | — | — |
| 1984 | 81° | 66° | 73° | — | — |
| 1983 | 88° | 64° | 76° | — | — |
| 1982 | 89° | 66° | 78° | — | — |
| 1981 | 87° | 63° | 75° | — | — |
| 1980 | 78° | 62° | 70° | — | — |
| 1979 | 83° | 66° | 74° | — | — |
| 1978 | 82° | 58° | 70° | — | — |
| 1977 | 85° | 64° | 74° | — | — |
| 1976 | 76° | 66° | 71° | — | — |
| 1975 | 79° | 63° | 71° | — | — |
| 1974 | 89° | 65° | 77° | — | — |
| 1973 | 76° | 59° | 67° | — | — |
| 1972 | 79° | 64° | 71° | — | — |
| 1971 | 82° | 63° | 72° | — | — |
55 years of data from SANTA ANA FIRE STN