W.carter / CC BY-SA 4.0
Vacaville, CA Weather on August 12
August 12th in Vacaville, CA typically brings hot summer weather, with average highs around 95°F and lows near 58°F — a 37°F daily swing. Over 55 years of records, the warmest August 12th was in 1996 (89°F average), while the coldest was 1974 (68°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.
What to Expect on August 12
Planning for August 12th in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.
August 12 Weather Records for Vacaville
- •The all-time record high for August 12th in Vacaville, CA is 108°F, set in 1996.
- •The coldest August 12th on record dropped to 51°F in 1987.
- •Temperatures have reached 90°F or higher on August 12th in 45 of the last 55 years.
Frequently Asked Questions
What was the warmest August 12 ever in Vacaville?
The warmest August 12 in Vacaville, CA reached 108°F in 1996. That is 13°F above the long-term average high of 95°F.
What was the coldest August 12 ever in Vacaville?
The coldest August 12 in Vacaville, CA dropped to 51°F in 1987. That is 7°F below the long-term average low of 58°F.
What is the average temperature on August 12 in Vacaville?
On August 12, Vacaville averages a high of 95°F and a low of 58°F based on 55 years of NOAA weather observations from VACAVILLE/NUT TREE AP ASOS.
How many years of weather data are available for August 12 in Vacaville?
We have 55 years of weather records for August 12 in Vacaville, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 12 Weather History in Vacaville
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 98°F | 59°F | 0" | -- |
| 2024 | 93°F | 56°F | 0" | -- |
| 2023 | 97°F | 61°F | 0" | -- |
| 2022 | 95°F | 60°F | 0" | -- |
| 2021 | 101°F | 65°F | 0" | -- |
| 2020 | 99°F | 59°F | 0" | -- |
| 2019 | 97°F | 57°F | 0" | -- |
| 2018 | 98°F | 61°F | 0" | -- |
| 2017 | 100°F | 64°F | 0" | -- |
| 2016 | 102°F | 57°F | 0" | -- |
| 2015 | 92°F | 59°F | 0" | -- |
| 2014 | 85°F | 61°F | 0" | -- |
| 2013 | 91°F | 56°F | 0" | -- |
| 2012 | 102°F | 62°F | 0" | -- |
| 2011 | 93°F | 56°F | 0" | -- |
| 2010 | 91°F | 54°F | 0" | -- |
| 2009 | 102°F | 60°F | 0" | -- |
| 2008 | 100°F | 61°F | 0" | -- |
| 2007 | 90°F | 57°F | 0" | -- |
| 2006 | 91°F | 56°F | 0" | -- |
| 2005 | 101°F | 62°F | 0" | -- |
| 2004 | 97°F | 64°F | 0" | -- |
| 2003 | 93°F | 56°F | 0" | -- |
| 2002 | 102°F | 55°F | 0" | -- |
| 2001 | 89°F | 56°F | 0" | -- |
| 2000 | 99°F | 57°F | 0" | -- |
| 1999 | 86°F | 57°F | 0" | -- |
| 1998 | 103°F | 64°F | 0" | -- |
| 1997 | 94°F | 57°F | 0" | -- |
| 1996 | 108°F | 71°F | 0" | -- |
| 1995 | 97°F | 56°F | 0" | -- |
| 1994 | 102°F | 52°F | 0" | -- |
| 1993 | 89°F | 54°F | 0" | -- |
| 1992 | 104°F | 65°F | 0" | -- |
| 1991 | 95°F | 62°F | 0" | -- |
| 1990 | 101°F | 60°F | 0" | -- |
| 1989 | 95°F | 55°F | 0" | -- |
| 1988 | -- | 55°F | 0" | -- |
| 1987 | 87°F | 51°F | 0" | -- |
| 1986 | 91°F | 57°F | 0" | -- |
| 1985 | 86°F | 54°F | 0" | -- |
| 1984 | 92°F | 54°F | 0" | -- |
| 1983 | 101°F | 58°F | 0" | -- |
| 1982 | 93°F | 55°F | 0" | -- |
| 1981 | 85°F | 58°F | 0" | -- |
| 1980 | 95°F | 54°F | 0" | -- |
| 1979 | 95°F | 60°F | 0" | -- |
| 1978 | 88°F | 58°F | 0" | -- |
| 1977 | 93°F | 56°F | 0" | -- |
| 1976 | 90°F | 55°F | 0" | -- |
| 1975 | 90°F | 51°F | 0" | -- |
| 1974 | 84°F | 52°F | 0" | -- |
| 1973 | 91°F | 54°F | 0" | -- |
| 1972 | 91°F | 55°F | 0" | -- |
| 1971 | 94°F | 59°F | 0" | -- |
Based on 55 years of data from NOAA station: VACAVILLE/NUT TREE AP ASOS
Monthly Climate Averages
Historical temperature and precipitation averages for Vacaville, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.