TODAY APR11
TEMPERATURE56
HUMIDITY55
PRESSURE29.92
WIND COND.360 9.4
  • 8048Sun
  • 8148Mon
  • 7546Tue
  • 7444Wed
  • 7645Thu
daynightWeather update from Modesto, Modesto City-County-Sham Field at

Key findings

  • The highest monthly average temperature in Cowan for July is 80 degrees
  • The lowest monthly average temperature in Cowan for January is 47 degrees
  • The most monthly precipitation in Cowan occurs in January with 2.4 inches
  • The air quality index in Cowan is 1% better than the national average
  • The pollution index in Cowan is 53% worse than the national average

Compare Cowan, CA Weather

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      Cowan 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
      January38°F58°F47°F2.4"
      February42°F64°F52°F1.9"
      March46°F70°F57°F1.7"
      April49°F76°F61°F1.3"
      May54°F85°F69°F0.4"
      June60°F93°F76°F0.2"
      July64°F98°F80°F0.0"
      August63°F96°F78°F0.0"
      September59°F91°F74°F0.1"
      October52°F80°F64°F0.7"
      November44°F68°F54°F1.1"
      December38°F58°F47°F2.3"

      Cowan 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.
      IndexCowanCaliforniaNational
      Air quality index495550
      Pollution index7,774,44018,106,7265,066,862

      Cowan air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality201
      Days with moderate air quality141
      Days w/ poor A.Q. for sensitive groups22
      Days with unhealthy air quality1

      Cowan air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.090%
      Carbon Tetrachloride0.000%
      Lead0.050%
      Mercury0.040%

      Average monthly Cowan temperature with heat index

      Cowan monthly precipitation with daily maximum

      Cowan monthly snow depth with daily maximum

      Cowan monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Livingston, CA13,703484%
      Delhi, CA10,968484%
      Riverbank, CA23,761492%
      Bystrom, CA3,865492%
      Grayson, CA990492%
      Cowan, CA481492%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Kensington, KS4811962%
      Sturgis, MS4813334%
      Mariaville Lake, NY4813726%
      Sidman, PA4813922%
      Riverdale, IA481468%
      Cowan, CA481492%
      Source: The Cowan, 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.