Weather on September 8
Vacaville, CA
55 Years of Data
Avg High
92°F
Avg Low
56°F
Warmest
2022
90°F avg
Coldest
2005
64°F avg
About This Date
September 8th in Vacaville, CA typically brings hot fall weather, with average highs around 92°F and lows near 56°F — a 36°F daily swing. Over 55 years of records, the warmest September 8th was in 2022 (90°F average), while the coldest was 2005 (64°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 8th dates historically. The last decade has been 5.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.0°F warmer on this date compared to 20-30 years ago.
Planning for September 8th in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 61° | 72° | — | — |
| 2024 | 99° | 50° | 74° | — | — |
| 2023 | 92° | 55° | 73° | — | — |
| 2022warmest | 111° | 69° | 90° | — | — |
| 2021 | 107° | 65° | 86° | — | — |
| 2020 | 97° | 72° | 84° | — | — |
| 2019 | 86° | 51° | 69° | — | — |
| 2018 | 98° | 53° | 76° | — | — |
| 2017 | 91° | 60° | 76° | — | — |
| 2016 | 95° | 62° | 79° | — | — |
| 2015 | 101° | 54° | 77° | — | — |
| 2014 | 84° | 55° | 70° | — | — |
| 2013 | 100° | 58° | 79° | — | — |
| 2012 | 94° | 60° | 77° | — | — |
| 2011 | 98° | 57° | 78° | — | — |
| 2010 | 74° | 56° | 65° | — | — |
| 2009 | 93° | 57° | 75° | — | — |
| 2008 | 91° | 57° | 74° | — | — |
| 2007 | 90° | 58° | 74° | — | — |
| 2006 | 73° | 57° | 65° | — | — |
| 2005coldest | 76° | 53° | 64° | — | — |
| 2004 | 102° | 61° | 81° | — | — |
| 2003 | 85° | 53° | 69° | — | — |
| 2002 | 86° | 47° | 66° | — | — |
| 2001 | 88° | 55° | 71° | — | — |
| 2000 | 93° | 52° | 72° | — | — |
| 1999 | 93° | 56° | 74° | — | — |
| 1998 | 91° | 59° | 75° | — | — |
| 1997 | 97° | 64° | 80° | — | — |
| 1996 | 98° | 55° | 77° | — | — |
| 1995 | 96° | 60° | 78° | — | — |
| 1994 | 89° | 54° | 71° | — | — |
| 1993 | 101° | 59° | 80° | — | — |
| 1992 | 96° | 55° | 76° | — | — |
| 1991 | 86° | 54° | 70° | — | — |
| 1990 | 92° | 53° | 72° | — | — |
| 1989 | 89° | 55° | 72° | — | — |
| 1988 | 80° | 53° | 67° | — | — |
| 1987 | 92° | 51° | 71° | — | — |
| 1986 | 77° | 53° | 65° | — | — |
| 1985 | 76° | 55° | 65° | 0.1" | — |
| 1984 | 101° | 59° | 80° | — | — |
| 1983 | 86° | 58° | 72° | — | — |
| 1982 | 99° | 58° | 78° | — | — |
| 1981 | 98° | 52° | 75° | — | — |
| 1980 | 84° | 52° | 68° | — | — |
| 1979 | 93° | 65° | 79° | — | — |
| 1978 | 84° | 47° | 65° | — | — |
| 1977 | 101° | 57° | 79° | — | — |
| 1976 | 100° | 54° | 77° | — | — |
| 1975 | 92° | 56° | 74° | — | — |
| 1974 | 96° | 52° | 74° | — | — |
| 1973 | 87° | 56° | 71° | — | — |
| 1972 | 88° | 51° | 69° | — | — |
| 1971 | 97° | 48° | 72° | — | — |
55 years of data from VACAVILLE/NUT TREE AP ASOS