TODAY APR25
TEMPERATURE59
HUMIDITY72
PRESSURE101800
WIND COND.260 7.6
  • 6654Thu
  • 6953Fri
  • 7354Sat
  • 7456Sun
  • 7857Mon
daynightWeather update from Los Angeles / USC Campus Downtown at
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Weather Quick Facts

  • The highest monthly average temperature in Walnut Park for August is 72.5 degrees
  • The lowest monthly average temperature in Walnut Park for December is 57 degrees
  • The most monthly precipitation in Walnut Park occurs in January with 3.5 inches
  • The air quality index in Walnut Park is 71% worse than the national average
  • The pollution index in Walnut Park is 5017% worse than the national average

Compare Walnut Park, CA Weather

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      Walnut Park 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
      January48°F70°F58°F3.5"
      February50°F70°F59°F2.9"
      March52°F72°F61°F1.5"
      April55°F74°F63°F0.7"
      May58°F75°F65°F0.5"
      June61°F78°F68°F0.0"
      July65°F83°F72°F0.0"
      August65°F84°F73°F0.0"
      September64°F85°F72°F0.3"
      October60°F81°F69°F0.7"
      November54°F75°F63°F0.8"
      December48°F69°F57°F2.8"

      Walnut Park 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.
      IndexWalnut ParkCaliforniaNational
      Air quality index725542
      Pollution index139,490,00010,473,1902,726,193

      Walnut Park 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

      Walnut Park air quality information

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

      Average monthly Walnut Park temperature with heat index

      Walnut Park monthly precipitation with daily maximum

      Walnut Park monthly snow depth with daily maximum

      Walnut Park monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Hacienda Heights, CA55,3867244.0%
      Gardena, CA59,4017244.0%
      Westmont, CA35,1887244.0%
      Bell Gardens, CA41,7707244.0%
      Downey, CA111,2637244.0%
      Walnut Park, CA15,9397244.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Comox, BC15,938n/a 
      New Haven, IN15,9344510.0%
      Dyer, IN15,9335510.0%
      Mount Holly, NC15,947492.0%
      Easthampton Town, MA15,9304020.0%
      Walnut Park, CA15,9397244.0%
      Source: The Walnut Park, 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.