TODAY MAY15
TEMPERATURE61
HUMIDITY60
PRESSURE29.77
WIND COND. 42.5
  • 7653Sat
  • 7553Sun
  • 7651Mon
  • 7951Tue
  • 7649Wed
daynightWeather update from Fairfield / Travis Air Force Base at

Key findings

  • The highest monthly average temperature in Suisun City for September is 67.8 degrees
  • The lowest monthly average temperature in Suisun City for December is 47.1 degrees
  • The most monthly precipitation in Suisun City occurs in January with 9.3 inches
  • The air quality index in Suisun City is 30% better than the national average
  • The pollution index in Suisun City is 52% better than the national average

Compare Suisun City, CA Weather

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      Suisun City 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
      January41°F57°F48°F9.3"
      February44°F62°F52°F3.6"
      March47°F66°F55°F3.0"
      April49°F70°F58°F1.8"
      May52°F75°F62°F0.0"
      June56°F81°F66°F0.0"
      July57°F83°F67°F0.2"
      August57°F83°F67°F0.0"
      September57°F84°F68°F0.1"
      October53°F76°F63°F0.6"
      November46°F65°F54°F0.8"
      December40°F57°F47°F3.3"

      Suisun City 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.
      IndexSuisun CityCaliforniaNational
      Air quality index355550
      Pollution index2,457,15018,106,7265,066,862

      Suisun City 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

      Suisun City air quality information

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

      Average monthly Suisun City temperature with heat index

      Suisun City monthly precipitation with daily maximum

      Suisun City monthly snow depth with daily maximum

      Suisun City monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Elmira, CA2083530%
      Green Valley, CA1,2243530%
      Allendale, CA1,3493530%
      Hartley, CA2,9883530%
      Fairfield, CA110,9533530%
      Suisun City, CA29,0453530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sanford, NC29,0482942%
      West Falls Church, VA29,059476%
      Opelika, AL29,0304216%
      Norwood, MA29,0184314%
      South Riding, VA29,073476%
      Suisun City, CA29,0453530%
      Source: The Suisun City, 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.