TODAY MAR19
TEMPERATURE59
HUMIDITY67
PRESSURE
WIND COND.63 4.8
  • 7453Tue
  • 7554Wed
  • 7452Thu
  • 7352Fri
  • 6548Sat
daynightWeather update from SANTA FE DAM at
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Weather Quick Facts

  • The highest monthly average temperature in Duarte for August is 75 degrees
  • The lowest monthly average temperature in Duarte for December is 56.3 degrees
  • The most monthly precipitation in Duarte occurs in December with 2.5 inches
  • The air quality index in Duarte is 71% worse than the national average
  • The pollution index in Duarte is 5017% worse than the national average

Compare Duarte, CA Weather

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      Duarte 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"

      Duarte 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.
      IndexDuarteCaliforniaNational
      Air quality index725542
      Pollution index139,490,00010,473,1902,726,193

      Duarte 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

      Duarte air quality information

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

      Average monthly Duarte temperature with heat index

      Duarte monthly precipitation with daily maximum

      Duarte monthly snow depth with daily maximum

      Duarte monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Industry, CA2647244.0%
      South San Jose Hills, CA19,1047244.0%
      West Covina, CA105,8087244.0%
      Bell Gardens, CA41,7707244.0%
      La Habra Heights, CA5,3187244.0%
      Duarte, CA21,3997244.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Bear, DE21,3974216.0%
      Ensley, FL21,3974118.0%
      Thorold, ON21,396n/a 
      Saint-Lazare, QC21,394n/a 
      Cranbrook, BC21,392n/a 
      Duarte, CA21,3997244.0%
      Source: The Duarte, 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.