TODAY JUN22
TEMPERATURE91
HUMIDITY30
PRESSURE29.89
WIND COND.210 6.9
  • 10071Fri
  • 10571Sat
  • 9162Sun
  • 8760Mon
  • 8959Tue
daynightWeather update from Vacaville Nut Tree Airport at

Vacaville Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January21°F79°F47°F3.8"
February29°F77°F51°F4.1"
March30°F85°F55°F2.8"
April36°F97°F59°F1.7"
May42°F105°F68°F1.0"
June47°F112°F73°F0.1"
July52°F114°F78°F0.0"
August52°F108°F76°Fn/a
September42°F105°F72°F0.0"
October37°F94°F64°F1.4"
November30°F85°F56°F1.5"
December26°F68°F47°F4.8"

Did you know?

  • The highest monthly average temperature in Vacaville for July is 78 degrees.
  • The lowest monthly average temperature in Vacaville for January is 47 degrees.
  • The most monthly precipitation in Vacaville occurs in December with 4.8 inches.
  • The air quality index in Vacaville is 13% better than the national average.
  • The pollution index in Vacaville is 51% better than the national average.

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Compare Vacaville, CA Weather To Other Cities

Vacaville air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexVacavilleCaliforniaNational
Air quality index435550
Pollution index2,457,15018,106,7265,066,862

Vacaville air quality information

MeasurementTotal
Days measured365
Days with good air quality220
Days with moderate air quality143
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality

Vacaville air quality information

PollutantTotal
Arsenic0.010%
Benzene0.080%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.020%

Average monthly Vacaville temperature with heat index

Vacaville monthly precipitation with daily maximum

Vacaville monthly snow depth with daily maximum

Vacaville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Allendale, CA1,3494314%
Fairfield, CA110,9534314%
Lemon Hill, CA13,5754314%
Green Valley CDP (Los Angeles County), CA1,0004314%
Moskowite Corner, CA1984314%
Vacaville, CA95,6074314%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Dearborn, MI95,520524%
South Gate, CA95,2197448%
Portsmouth, VA96,0713922%
Mission Viejo, CA96,1788570%
New Bedford, MA94,9884510%
Vacaville, CA95,6074314%
Source: The Vacaville, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.