Historical Weather in Vallejo, CA
See 55+ years of weather history for any date in Vallejo going back to 1970.
Part of California weather history
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Today in Vallejo Weather HistorySee records, averages, and 55+ years of data for today's date
→Monthly Climate Averages
Historical temperature and precipitation averages for Vallejo, CA, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 85°F / Low: 57°F
Coldest MonthDecemberAvg High: 57°F / Low: 41°F
Jan
58°/ 42°
💧 9.4"
Feb
62°/ 43°
💧 10.4"
Mar
66°/ 45°
💧 8.4"
Apr
70°/ 47°
💧 7.2"
May
76°/ 50°
💧 7.2"
Jun
82°/ 54°
💧 4.5"
Jul
84°/ 56°
💧 2.2"
Aug
85°/ 57°
💧 2.8"
Sep
84°/ 56°
💧 3.9"
Oct
77°/ 52°
💧 9.2"
Nov
66°/ 46°
💧 8.4"
Dec
57°/ 41°
💧 9.2"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Vallejo Temperature Records
- Record High: The hottest temperature ever recorded in Vallejo, CA is 115°F, set on September 6, 2022.
- Record Low: The coldest temperature ever recorded in Vallejo, CA is 14°F, set on December 22, 1990.
- Data Coverage: Based on 29 years of data from NOAA weather station: VALLEJO.
All-Time Record High
115°F
September 6, 2022
All-Time Record Low
14°F
December 22, 1990
Monthly Temperature Records in Vallejo
| Month | Record High | Record Low |
|---|---|---|
| January | 80°F(1996) | 18°F(2007) |
| February | 82°F(2016) | 21°F(2018) |
| March | 92°F(1998) | 25°F(1999) |
| April | 99°F(1998) | 25°F(2008) |
| May | 105°F(2001) | 30°F(1974) |
| June | 110°F(2000) | 36°F(1999) |
| July | 112°F(1972) | 43°F(1975) |
| August | 109°F(2020) | 41°F(1979) |
| September | 115°F(2022) | 35°F(2019) |
| October | 106°F(1980) | 30°F(2002) |
| November | 88°F(2020) | 22°F(2000) |
| December | 78°F(1999) | 14°F(1990) |
Vallejo Snow RecordsSee the top 10 snowiest days ever recorded
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