Weather on July 20
Vacaville, CA
55 Years of Data
Avg High
93°F
Avg Low
59°F
Warmest
1990
86°F avg
Coldest
1972
63°F avg
About This Date
July 20th in Vacaville, CA typically brings hot summer weather, with average highs around 93°F and lows near 59°F — a 34°F daily swing. Over 55 years of records, the warmest July 20th was in 1990 (86°F average), while the coldest was 1972 (63°F) — a 23°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 July 20th in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 55° | 71° | — | — |
| 2024 | 106° | 66° | 86° | — | — |
| 2023 | 102° | 56° | 79° | — | — |
| 2022 | 106° | 54° | 80° | — | — |
| 2021 | 96° | 60° | 78° | — | — |
| 2020 | 94° | 60° | 77° | — | — |
| 2019 | 89° | 56° | 72° | — | — |
| 2018 | 94° | 67° | 80° | — | — |
| 2017 | 95° | 59° | 77° | — | — |
| 2016 | 93° | 55° | 74° | — | — |
| 2015 | 100° | 71° | 86° | — | — |
| 2014 | 80° | 64° | 72° | — | — |
| 2013 | 101° | 59° | 80° | — | — |
| 2012 | 94° | 57° | 75° | — | — |
| 2011 | 95° | 59° | 77° | — | — |
| 2010 | 92° | 59° | 75° | — | — |
| 2009 | 102° | 64° | 83° | — | — |
| 2008 | 81° | 55° | 68° | — | — |
| 2007 | 87° | 57° | 72° | — | — |
| 2006 | 106° | 67° | 86° | — | — |
| 2005 | 101° | 57° | 79° | — | — |
| 2004 | 95° | 66° | 81° | — | — |
| 2003 | 104° | 68° | 86° | — | — |
| 2002 | 100° | 59° | 80° | — | — |
| 2001 | 81° | 57° | 69° | — | — |
| 2000 | 98° | 58° | 78° | — | — |
| 1999 | 74° | 54° | 64° | — | — |
| 1998 | 86° | 61° | 73° | — | — |
| 1997 | 100° | 60° | 80° | — | — |
| 1996 | 102° | 60° | 81° | — | — |
| 1995 | 92° | 61° | 76° | — | — |
| 1994 | 92° | 57° | 74° | — | — |
| 1993 | 89° | 57° | 73° | — | — |
| 1992 | 94° | 59° | 76° | — | — |
| 1991 | 87° | 57° | 72° | — | — |
| 1990warmest | 107° | 65° | 86° | — | — |
| 1989 | 102° | 61° | 81° | — | — |
| 1988 | 86° | 58° | 72° | — | — |
| 1987 | 82° | 53° | 68° | — | — |
| 1986 | 89° | 51° | 70° | — | — |
| 1985 | 80° | 57° | 69° | — | — |
| 1984 | 92° | 61° | 76° | — | — |
| 1983 | 89° | 50° | 70° | — | — |
| 1982 | 94° | 52° | 73° | — | — |
| 1981 | 103° | 56° | 79° | — | — |
| 1980 | 92° | 54° | 73° | — | — |
| 1979 | 99° | 62° | 80° | — | — |
| 1978 | 98° | 58° | 78° | — | — |
| 1977 | 95° | 63° | 79° | — | — |
| 1976 | 95° | 54° | 74° | — | — |
| 1975 | 89° | 55° | 72° | — | — |
| 1974 | 96° | 59° | 78° | — | — |
| 1973 | 79° | 50° | 64° | — | — |
| 1972coldest | 71° | 56° | 63° | — | — |
| 1971 | 104° | 63° | 83° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS