TODAY MAY12
TEMPERATURE57
HUMIDITY86
PRESSURE
WIND COND.273 4.8
  • 8262Wed
  • 8258Thu
  • 7856Fri
  • 7455Sat
  • 7255Sun
daynightWeather update from SANTA FE DAM at

Key findings

  • The highest monthly average temperature in West Covina for August is 75 degrees
  • The lowest monthly average temperature in West Covina for December is 56.3 degrees
  • The most monthly precipitation in West Covina occurs in December with 2.5 inches
  • The air quality index in West Covina is 45% worse than the national average
  • The pollution index in West Covina is 2653% worse than the national average

Compare West Covina, CA Weather

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      West Covina 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
      January46°F72°F57°F2.3"
      February48°F72°F58°F1.7"
      March51°F75°F61°F1.0"
      April54°F76°F64°F0.5"
      May58°F78°F66°F0.3"
      June62°F81°F70°F0.0"
      July66°F86°F74°F0.1"
      August66°F88°F75°F0.0"
      September65°F88°F74°F0.2"
      October59°F83°F69°F0.4"
      November52°F77°F63°F0.6"
      December45°F70°F56°F2.5"

      West Covina 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.
      IndexWest CovinaCaliforniaNational
      Air quality index725550
      Pollution index139,490,00018,106,7265,066,862

      West Covina air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality66
      Days with moderate air quality208
      Days w/ poor A.Q. for sensitive groups62
      Days with unhealthy air quality28

      West Covina air quality information

      PollutantTotal
      Arsenic0.200%
      Benzene0.950%
      Carbon Tetrachloride0.080%
      Lead1.320%
      Mercury0.440%

      Average monthly West Covina temperature with heat index

      West Covina monthly precipitation with daily maximum

      West Covina monthly snow depth with daily maximum

      West Covina monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      South Pasadena, CA25,9367244%
      Avocado Heights, CA16,1887244%
      El Monte, CA115,6657244%
      Rosemead, CA54,5077244%
      South El Monte, CA20,5667244%
      West Covina, CA107,6347244%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Centennial, CO107,8625816%
      Richmond, CA108,3034020%
      Richardson, TX108,350512%
      The Woodlands, TX108,373524%
      Pueblo, CO108,3852060%
      West Covina, CA107,6347244%
      Source: The West Covina, 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.