Weather on August 1
Vacaville, CA
55 Years of Data
Avg High
96°F
Avg Low
58°F
Warmest
1993
88°F avg
Coldest
1981
67°F avg
About This Date
August 1st in Vacaville, CA typically brings hot summer weather, with average highs around 96°F and lows near 58°F — a 38°F daily swing. Over 55 years of records, the warmest August 1st was in 1993 (88°F average), while the coldest was 1981 (67°F) — a 21°F range across recorded history. This date has historically been dry, with little recorded precipitation. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 1st in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 58° | 75° | — | — |
| 2024 | 102° | 58° | 80° | — | — |
| 2023 | 90° | 59° | 74° | — | — |
| 2022 | 86° | 64° | 75° | — | — |
| 2021 | 98° | 61° | 79° | — | — |
| 2020 | 96° | 53° | 75° | — | — |
| 2019 | 90° | 59° | 74° | — | — |
| 2018 | 99° | 58° | 78° | — | — |
| 2017 | 106° | 66° | 86° | — | — |
| 2016 | 93° | 58° | 75° | — | — |
| 2015 | 98° | 66° | 82° | — | — |
| 2014 | 109° | 62° | 86° | — | — |
| 2013 | 88° | 59° | 73° | — | — |
| 2012 | 98° | 58° | 78° | — | — |
| 2011 | 93° | 57° | 75° | — | — |
| 2010 | 93° | 55° | 74° | — | — |
| 2009 | 94° | 59° | 76° | — | — |
| 2008 | 97° | 57° | 77° | — | — |
| 2007 | 102° | 58° | 80° | — | — |
| 2006 | 90° | 56° | 73° | — | — |
| 2005 | 104° | 60° | 82° | — | — |
| 2004 | 81° | 58° | 69° | — | — |
| 2003 | 95° | 65° | 80° | — | — |
| 2002 | 94° | 58° | 76° | — | — |
| 2001 | 92° | 60° | 76° | — | — |
| 2000 | 104° | 70° | 87° | — | — |
| 1999 | 90° | 54° | 72° | — | — |
| 1998 | 88° | 58° | 73° | — | — |
| 1997 | 89° | 57° | 73° | — | — |
| 1996 | 105° | 57° | 81° | — | — |
| 1995 | 107° | 63° | 85° | — | — |
| 1994 | 88° | 53° | 70° | — | — |
| 1993warmest | 108° | 68° | 88° | — | — |
| 1992 | 99° | 54° | 76° | — | — |
| 1991 | 95° | 53° | 74° | — | — |
| 1990 | 100° | 55° | 78° | — | — |
| 1989 | 87° | 55° | 71° | — | — |
| 1988 | 94° | 57° | 75° | — | — |
| 1987 | 100° | 58° | 79° | — | — |
| 1986 | 99° | 54° | 76° | — | — |
| 1985 | 85° | 52° | 68° | — | — |
| 1984 | 95° | 58° | 76° | — | — |
| 1983 | 93° | 59° | 76° | — | — |
| 1982 | 100° | 60° | 80° | — | — |
| 1981coldest | 82° | 52° | 67° | — | — |
| 1980 | 105° | 64° | 85° | — | — |
| 1979 | 104° | 54° | 79° | — | — |
| 1978 | 102° | 59° | 81° | — | — |
| 1977 | 103° | 65° | 84° | — | — |
| 1976 | 82° | 64° | 73° | — | — |
| 1975 | 97° | 53° | 75° | — | — |
| 1974 | 98° | 57° | 78° | — | — |
| 1973 | 102° | 58° | 80° | — | — |
| 1972 | 96° | 53° | 75° | — | — |
| 1971 | 101° | 58° | 79° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS