Currently: 57 °F. Partly sunny. (Weather station: Napa County Airport, USA). See more current weatherAnnual Weather Averages Near Vallejo
Averages are for Napa County Airport, which is 8 miles from Vallejo.
Based on weather reports collected during 1985–2015.
All Year Climate & Weather Averages in Vallejo
High Temp: 80 °F
Low Temp: 37 °F
Mean Temp: 58 °F
Precipitation: 0.82"
Humidity: 67%
Dew Point: 47 °F
Wind: 7 mph
Pressure: 30.00 "Hg
Visibility: 11 mi
January Climate & Weather Averages in Vallejo
High Temp: 57 °F
Low Temp: 38 °F
Mean Temp: 47 °F
Precipitation: 2.00"
Humidity: 80%
Dew Point: 41 °F
Wind: 6 mph
Pressure: 30.13 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Vallejo
High Temp: 61 °F
Low Temp: 40 °F
Mean Temp: 51 °F
Precipitation: 2.40"
Humidity: 76%
Dew Point: 43 °F
Wind: 5 mph
Pressure: 30.06 "Hg
Visibility: 10 mi
March Climate & Weather Averages in Vallejo
High Temp: 65 °F
Low Temp: 42 °F
Mean Temp: 54 °F
Precipitation: 1.61"
Humidity: 71%
Dew Point: 45 °F
Wind: 6 mph
Pressure: 30.04 "Hg
Visibility: 12 mi
April Climate & Weather Averages in Vallejo
High Temp: 69 °F
Low Temp: 43 °F
Mean Temp: 56 °F
Precipitation: 0.46"
Humidity: 66%
Dew Point: 46 °F
Wind: 8 mph
Pressure: 30.01 "Hg
Visibility: 14 mi
May Climate & Weather Averages in Vallejo
High Temp: 74 °F
Low Temp: 47 °F
Mean Temp: 60 °F
Precipitation: 0.14"
Humidity: 63%
Dew Point: 49 °F
Wind: 9 mph
Pressure: 29.95 "Hg
Visibility: 13 mi
June Climate & Weather Averages in Vallejo
High Temp: 78 °F
Low Temp: 52 °F
Mean Temp: 65 °F
Precipitation: 0.02"
Humidity: 59%
Dew Point: 51 °F
Wind: 10 mph
Pressure: 29.89 "Hg
Visibility: 13 mi
July Climate & Weather Averages in Vallejo
High Temp: 80 °F
Low Temp: 54 °F
Mean Temp: 67 °F
Precipitation: 0.00"
Humidity: 60%
Dew Point: 54 °F
Wind: 10 mph
Pressure: 29.90 "Hg
Visibility: 13 mi
August Climate & Weather Averages in Vallejo
High Temp: 80 °F
Low Temp: 54 °F
Mean Temp: 67 °F
Precipitation: 0.00"
Humidity: 61%
Dew Point: 54 °F
Wind: 9 mph
Pressure: 29.90 "Hg
Visibility: 12 mi
September Climate & Weather Averages in Vallejo
High Temp: 80 °F
Low Temp: 51 °F
Mean Temp: 66 °F
Precipitation: 0.01"
Humidity: 59%
Dew Point: 52 °F
Wind: 7 mph
Pressure: 29.89 "Hg
Visibility: 11 mi
October Climate & Weather Averages in Vallejo
High Temp: 75 °F
Low Temp: 47 °F
Mean Temp: 61 °F
Precipitation: 0.18"
Humidity: 61%
Dew Point: 48 °F
Wind: 5 mph
Pressure: 29.97 "Hg
Visibility: 11 mi
November Climate & Weather Averages in Vallejo
High Temp: 65 °F
Low Temp: 41 °F
Mean Temp: 53 °F
Precipitation: 0.87"
Humidity: 71%
Dew Point: 44 °F
Wind: 5 mph
Pressure: 30.08 "Hg
Visibility: 11 mi
December Climate & Weather Averages in Vallejo
High Temp: 57 °F
Low Temp: 37 °F
Mean Temp: 47 °F
Precipitation: 2.17"
Humidity: 78%
Dew Point: 40 °F
Wind: 6 mph
Pressure: 30.12 "Hg
Visibility: 9 mi