TODAY JAN21
TEMPERATURE37
HUMIDITY70
PRESSURE30.1
WIND COND.
  • 6344Thu
  • 5438Fri60%20%
  • 5936Sat
  • 5138Sun
  • 5335Mon
daynightWeather update from Vacaville Nut Tree Airport at

Key findings

  • The highest monthly average temperature in Vacaville for July is 77 degrees
  • The lowest monthly average temperature in Vacaville for December is 47 degrees
  • The most monthly precipitation in Vacaville occurs in January with 5.6 inches
  • The air quality index in Vacaville is 30% better than the national average
  • The pollution index in Vacaville is 52% better than the national average

Compare Vacaville, CA Weather

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      Vacaville Average Temperature

      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
      January37°F60°F47°F5.6"
      February41°F64°F52°F4.8"
      March45°F69°F56°F4.6"
      April47°F74°F60°F2.5"
      May52°F82°F67°F0.7"
      June57°F91°F74°F0.3"
      July60°F96°F77°F0.0"
      August59°F95°F75°F0.0"
      September56°F92°F73°F0.1"
      October50°F81°F64°F1.9"
      November43°F68°F54°F2.3"
      December37°F59°F47°F4.6"

      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 index355550
      Pollution index2,457,15018,106,7265,066,862

      Vacaville air quality information

      MeasurementTotal
      Days measured363
      Days with good air quality330
      Days with moderate air quality31
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      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.
      Green Valley CDP (Los Angeles County), CA1,0003530%
      Moskowite Corner, CA1983530%
      Green Valley, CA1,2243530%
      Suisun City, CA29,0453530%
      Allendale, CA1,3493530%
      Vacaville, CA95,6073530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Dearborn, MI95,5205612%
      South Gate, CA95,2197244%
      Portsmouth, VA96,0714020%
      Mission Viejo, CA96,1788978%
      New Bedford, MA94,9884412%
      Vacaville, CA95,6073530%
      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.