Weather on July 21
Vista, CA
55 Years of Data
Avg High
78°F
Avg Low
63°F
Warmest
1981
77°F avg
Coldest
2002
64°F avg
About This Date
July 21st in Vista, CA typically brings pleasant summer weather, with average highs around 78°F and lows near 63°F. Over 55 years of records, the warmest July 21st was in 1981 (77°F average), while the coldest was 2002 (64°F) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 2% of July 21st dates historically, with the wettest July 21st recording 1.63" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for July 21st in Vista, CA? Great weather for outdoor activities.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 65° | 68° | — | — |
| 2024 | 74° | 66° | 70° | — | — |
| 2023 | 76° | 67° | 71° | — | — |
| 2022 | 74° | 66° | 70° | — | — |
| 2021 | 76° | 67° | 71° | — | — |
| 2020 | 73° | 66° | 70° | — | — |
| 2019 | 75° | 68° | 72° | — | — |
| 2018 | 73° | 67° | 70° | — | — |
| 2017 | 75° | 68° | 72° | — | — |
| 2016 | 83° | 67° | 75° | — | — |
| 2015 | 76° | 68° | 72° | — | — |
| 2014 | 75° | 65° | 70° | — | — |
| 2013 | 71° | 66° | 69° | — | — |
| 2012 | 74° | 66° | 70° | — | — |
| 2011 | 74° | 65° | 69° | — | — |
| 2010 | 68° | 63° | 65° | — | — |
| 2009 | 81° | 68° | 74° | — | — |
| 2008 | 72° | 61° | 66° | — | — |
| 2007 | 71° | 64° | 68° | — | — |
| 2006 | 79° | 70° | 74° | — | — |
| 2005 | 82° | 68° | 75° | — | — |
| 2004 | 75° | 65° | 70° | — | — |
| 2003 | 76° | 65° | 70° | — | — |
| 2002coldest | 68° | 61° | 64° | — | — |
| 2001 | 72° | 62° | 67° | — | — |
| 2000 | 72° | 63° | 67° | — | — |
| 1999 | 74° | 61° | 67° | — | — |
| 1998 | 75° | 65° | 70° | — | — |
| 1997 | 78° | 58° | 68° | 1.63" | — |
| 1996 | 89° | 59° | 74° | — | — |
| 1995 | 82° | 56° | 69° | — | — |
| 1994 | 81° | 62° | 71° | — | — |
| 1993 | 78° | 63° | 70° | — | — |
| 1992 | 85° | 64° | 74° | — | — |
| 1991 | 77° | 59° | 68° | — | — |
| 1990 | 84° | 65° | 74° | — | — |
| 1989 | 87° | 66° | 77° | — | — |
| 1988 | 86° | 64° | 75° | — | — |
| 1987 | 73° | 61° | 67° | — | — |
| 1986 | 77° | 61° | 69° | — | — |
| 1985 | 88° | 63° | 75° | — | — |
| 1984 | 82° | 66° | 74° | — | — |
| 1983 | 89° | 61° | 75° | — | — |
| 1982 | 90° | 61° | 75° | — | — |
| 1981warmest | 87° | 67° | 77° | — | — |
| 1980 | 78° | 59° | 69° | — | — |
| 1979 | 79° | 64° | 71° | — | — |
| 1978 | 83° | 57° | 70° | — | — |
| 1977 | 82° | 57° | 70° | — | — |
| 1976 | 75° | 63° | 69° | — | — |
| 1975 | 78° | 57° | 68° | — | — |
| 1974 | 89° | 62° | 76° | — | — |
| 1973 | — | 53° | — | — | — |
| 1972 | 77° | 61° | 69° | — | — |
| 1971 | 84° | 61° | 72° | — | — |
55 years of data from CARLSBAD MCCLELLAN PALOMAR AP