Weather on August 18
Vista, CA
55 Years of Data
Avg High
78°F
Avg Low
64°F
Warmest
1992
82°F avg
Coldest
1975
64°F avg
About This Date
August 18th in Vista, CA typically brings pleasant summer weather, with average highs around 78°F and lows near 64°F. Over 55 years of records, the warmest August 18th was in 1992 (82°F average), while the coldest was 1975 (64°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 7% of August 18th dates historically, with the wettest August 18th recording 0.51" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Vista, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 65° | 69° | — | — |
| 2024 | 76° | 64° | 70° | — | — |
| 2023 | 75° | 65° | 70° | — | — |
| 2022 | 77° | 68° | 73° | — | — |
| 2021 | 76° | 68° | 72° | 0.03" | — |
| 2020 | 86° | 71° | 79° | — | — |
| 2019 | 73° | 67° | 70° | — | — |
| 2018 | 78° | 71° | 75° | — | — |
| 2017 | 73° | 66° | 70° | — | — |
| 2016 | 76° | 66° | 71° | — | — |
| 2015 | 77° | 69° | 73° | — | — |
| 2014 | 75° | 68° | 72° | — | — |
| 2013 | 73° | 64° | 69° | — | — |
| 2012 | 85° | 73° | 79° | — | — |
| 2011 | 73° | 63° | 68° | — | — |
| 2010 | 84° | 69° | 77° | — | — |
| 2009 | 72° | 64° | 68° | — | — |
| 2008 | 73° | 66° | 70° | — | — |
| 2007 | 80° | 68° | 74° | — | — |
| 2006 | 75° | 65° | 70° | — | — |
| 2005 | 74° | 64° | 69° | — | — |
| 2004 | 73° | 63° | 68° | — | — |
| 2003 | 75° | 66° | 71° | — | — |
| 2002 | 72° | 62° | 67° | — | — |
| 2001 | 79° | 63° | 71° | — | — |
| 2000 | 78° | 66° | 72° | — | — |
| 1999 | 74° | 61° | 67° | — | — |
| 1998 | 76° | 66° | 71° | — | — |
| 1997 | 85° | 60° | 72° | — | — |
| 1996 | 80° | 67° | 73° | — | — |
| 1995 | 84° | 57° | 71° | — | — |
| 1994 | 86° | 69° | 78° | — | — |
| 1993 | 81° | 62° | 71° | — | — |
| 1992warmest | 95° | 68° | 82° | — | — |
| 1991 | 82° | 61° | 71° | — | — |
| 1990 | 78° | 66° | 72° | — | — |
| 1989 | 77° | 64° | 71° | — | — |
| 1988 | 76° | 60° | 68° | — | — |
| 1987 | 74° | 59° | 66° | — | — |
| 1986 | 97° | 54° | 75° | — | — |
| 1985 | 80° | 64° | 72° | — | — |
| 1984 | 81° | 69° | 75° | 0.18" | — |
| 1983 | 73° | 68° | 71° | 0.33" | — |
| 1982 | 84° | 61° | 72° | — | — |
| 1981 | 80° | 65° | 72° | — | — |
| 1980 | 76° | 62° | 69° | — | — |
| 1979 | 77° | 61° | 69° | — | — |
| 1978 | 79° | 58° | 68° | — | — |
| 1977 | 78° | 67° | 72° | 0.51" | — |
| 1976 | 77° | 55° | 66° | — | — |
| 1975coldest | 75° | 53° | 64° | — | — |
| 1974 | 80° | 55° | 68° | — | — |
| 1973 | 85° | 60° | 72° | — | — |
| 1972 | 76° | 62° | 69° | — | — |
| 1971 | 81° | 61° | 71° | — | — |
55 years of data from CARLSBAD MCCLELLAN PALOMAR AP