TODAY APR19
TEMPERATURE57
HUMIDITY86
PRESSURE101530
WIND COND.273 1.6
  • 6953Fri
  • 7054Sat
  • 7456Sun
  • 7055Mon
  • 6653Tue
daynightWeather update from EW3680 Lemon Grove at
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Weather Quick Facts

  • The highest monthly average temperature in Emerald Hills for August is 71.1 degrees
  • The lowest monthly average temperature in Emerald Hills for December is 57.5 degrees
  • The most monthly precipitation in Emerald Hills occurs in December with 2.2 inches
  • The air quality index in Emerald Hills is 52% worse than the national average
  • The pollution index in Emerald Hills is 1581% worse than the national average

Compare San Diego, CA Weather

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      Emerald Hills 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
      January49°F68°F58°F1.7"
      February51°F68°F59°F1.8"
      March54°F69°F60°F1.0"
      April56°F70°F62°F0.6"
      May60°F70°F64°F0.4"
      June62°F72°F66°F0.0"
      July66°F76°F70°F0.2"
      August67°F78°F71°F0.0"
      September66°F78°F71°F0.2"
      October61°F77°F68°F0.5"
      November55°F73°F63°F0.9"
      December49°F67°F58°F2.2"

      Emerald Hills 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.
      IndexEmerald HillsSan DiegoCalifornia
      Air quality index646455
      Pollution index45,820,50045,820,50010,473,190

      Emerald Hills air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality87
      Days with moderate air quality253
      Days w/ poor A.Q. for sensitive groups23
      Days with unhealthy air quality2

      Emerald Hills air quality information

      PollutantTotal
      Arsenic1.130%
      Benzene0.410%
      Carbon Tetrachloride0.030%
      Lead0.600%
      Mercury0.080%

      Average monthly Emerald Hills temperature with heat index

      Emerald Hills monthly precipitation with daily maximum

      Emerald Hills monthly snow depth with daily maximum

      Emerald Hills monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Chula Vista, CA268,7796428.0%
      La Presa, CA37,4106428.0%
      Spring Valley, CA31,8666428.0%
      El Cajon, CA103,2496428.0%
      Lakeside, CA21,0326428.0%
      San Diego, CA1,414,5456428.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Calgary, AB1,371,990n/a 
      Dallas, TX1,338,846512.0%
      San Antonio, TX1,529,133492.0%
      Philadelphia, PA1,581,531512.0%
      Phoenix, AZ1,658,4227448.0%
      San Diego, CA1,414,5456428.0%
      Source: The Emerald Hills, San Diego, 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.