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Key findings

  • The highest monthly average temperature in West Whittier-Los Nietos for August is 75 degrees
  • The lowest monthly average temperature in West Whittier-Los Nietos for December is 56.3 degrees
  • The most monthly precipitation in West Whittier-Los Nietos occurs in December with 2.5 inches
  • The air quality index in West Whittier-Los Nietos is 45% worse than the national average
  • The pollution index in West Whittier-Los Nietos is 5017% worse than the national average

Compare West Whittier-Los Nietos, CA Weather

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      West Whittier-Los Nietos 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 Whittier-Los Nietos 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 Whittier-Los NietosCaliforniaNational
      Air quality index725550
      Pollution index139,490,00010,473,1902,726,193

      West Whittier-Los Nietos 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 Whittier-Los Nietos air quality information

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

      Average monthly West Whittier-Los Nietos temperature with heat index

      West Whittier-Los Nietos monthly precipitation with daily maximum

      West Whittier-Los Nietos monthly snow depth with daily maximum

      West Whittier-Los Nietos monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bradbury, CA9547244.0%
      Hacienda Heights, CA54,0337244.0%
      Gardena, CA59,8987244.0%
      Westmont, CA32,1477244.0%
      Bell Gardens, CA42,8057244.0%
      West Whittier-Los Nietos, CA27,0717244.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lincoln, ON27,082n/a 
      Clarence-Rockland, ON27,082n/a 
      Sainte-Thérèse, QC27,055n/a 
      Lafayette, CO27,053476.0%
      Short Pump, VA27,0994412.0%
      West Whittier-Los Nietos, CA27,0717244.0%
      Source: The West Whittier-Los Nietos, 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.