Weather on August 23
Vacaville, CA
55 Years of Data
Avg High
92°F
Avg Low
57°F
Warmest
1995
83°F avg
Coldest
2002
65°F avg
About This Date
August 23rd in Vacaville, CA typically brings hot summer weather, with average highs around 92°F and lows near 57°F — a 35°F daily swing. Over 55 years of records, the warmest August 23rd was in 1995 (83°F average), while the coldest was 2002 (65°F) — a 18°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 23rd in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 102° | 63° | 82° | — | — |
| 2024 | 76° | 57° | 66° | — | — |
| 2023 | 98° | 61° | 79° | — | — |
| 2022 | 100° | 61° | 80° | — | — |
| 2021 | 85° | 54° | 69° | — | — |
| 2020 | 97° | 62° | 79° | — | — |
| 2019 | 98° | 62° | 80° | — | — |
| 2018 | 86° | 56° | 71° | — | — |
| 2017 | 98° | 64° | 81° | — | — |
| 2016 | 90° | 56° | 73° | — | — |
| 2015 | 92° | 58° | 75° | — | — |
| 2014 | 89° | 55° | 72° | — | — |
| 2013 | 92° | 52° | 72° | — | — |
| 2012 | 92° | 56° | 74° | — | — |
| 2011 | 95° | 55° | 75° | — | — |
| 2010 | 101° | 56° | 78° | — | — |
| 2009 | 84° | 60° | 72° | — | — |
| 2008 | 93° | 61° | 77° | — | — |
| 2007 | 98° | 64° | 81° | — | — |
| 2006 | 93° | 53° | 73° | — | — |
| 2005 | 96° | 59° | 78° | — | — |
| 2004 | 86° | 60° | 73° | — | — |
| 2003 | 91° | 55° | 73° | — | — |
| 2002coldest | 83° | 48° | 65° | — | — |
| 2001 | 90° | 55° | 72° | — | — |
| 2000 | 86° | 57° | 72° | — | — |
| 1999 | 99° | 64° | 81° | — | — |
| 1998 | 94° | 56° | 75° | — | — |
| 1997 | 88° | 56° | 72° | — | — |
| 1996 | 101° | 62° | 81° | — | — |
| 1995warmest | 100° | 66° | 83° | — | — |
| 1994 | 92° | 51° | 71° | — | — |
| 1993 | 99° | 61° | 80° | — | — |
| 1992 | 96° | 57° | 77° | — | — |
| 1991 | 96° | 52° | 74° | — | — |
| 1990 | 98° | 62° | 80° | — | — |
| 1989 | 85° | 56° | 70° | — | — |
| 1988 | 97° | 58° | 77° | — | — |
| 1987 | 83° | 54° | 68° | — | — |
| 1986 | 91° | 51° | 71° | — | — |
| 1985 | 91° | 49° | 70° | — | — |
| 1984 | 90° | 51° | 70° | — | — |
| 1983 | 85° | 54° | 69° | — | — |
| 1982 | 99° | 57° | 78° | — | — |
| 1981 | 86° | 51° | 69° | — | — |
| 1980 | 85° | 52° | 68° | — | — |
| 1979 | 87° | 55° | 71° | — | — |
| 1978 | 80° | 52° | 66° | — | — |
| 1977 | 100° | 55° | 78° | — | — |
| 1976 | 88° | 53° | 70° | — | — |
| 1975 | 95° | 55° | 75° | — | — |
| 1974 | 101° | 57° | 79° | — | — |
| 1973 | 83° | 49° | 66° | — | — |
| 1972 | 97° | 58° | 77° | — | — |
| 1971 | 97° | 56° | 76° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS