TODAY APR26
TEMPERATURE57
HUMIDITY81
PRESSURE101770
WIND COND.303 4.8
  • 6154Fri40%20%
  • 6650Sat
  • 7253Sun
  • 7454Mon
  • 7454Tue
daynightWeather update from EW3070 Rancho San Diego at
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Weather Quick Facts

  • The highest monthly average temperature in Spring Valley CDP (Lake County) for August is 70.3 degrees
  • The lowest monthly average temperature in Spring Valley CDP (Lake County) for December is 55 degrees
  • The most monthly precipitation in Spring Valley CDP (Lake County) occurs in December with 2 inches
  • The air quality index in Spring Valley CDP (Lake County) is 52% worse than the national average
  • The pollution index in Spring Valley CDP (Lake County) is 1581% worse than the national average

Compare Spring Valley CDP (Lake County), CA Weather

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      Spring Valley CDP (Lake County) 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
      January44°F68°F56°F1.6"
      February45°F68°F56°F1.7"
      March47°F70°F58°F1.1"
      April50°F71°F60°F0.7"
      May55°F72°F62°F0.4"
      June58°F76°F65°F0.0"
      July63°F80°F69°F0.1"
      August63°F81°F70°F0.0"
      September61°F81°F70°F0.2"
      October56°F79°F66°F0.5"
      November50°F74°F61°F0.9"
      December44°F67°F55°F2.0"

      Spring Valley CDP (Lake County) 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.
      IndexSpring Valley CDP (Lake County)CaliforniaNational
      Air quality index645542
      Pollution index45,820,50010,473,1902,726,193

      Spring Valley CDP (Lake County) 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

      Spring Valley CDP (Lake County) air quality information

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

      Average monthly Spring Valley CDP (Lake County) temperature with heat index

      Spring Valley CDP (Lake County) monthly precipitation with daily maximum

      Spring Valley CDP (Lake County) monthly snow depth with daily maximum

      Spring Valley CDP (Lake County) monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Coronado, CA24,5266428.0%
      Lemon Grove, CA26,7396428.0%
      Alpine, CA14,9586428.0%
      El Cajon, CA103,2496428.0%
      Lakeside, CA21,0326428.0%
      Spring Valley CDP (Lake County), CA1,1546428.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Astoria, IL1,1544020.0%
      Hatfield, MA1,1544020.0%
      West Kennebunk, ME1,1544020.0%
      Urbancrest, OH1,154468.0%
      Richlandtown, PA1,1544216.0%
      Spring Valley CDP (Lake County), CA1,1546428.0%
      Source: The Spring Valley CDP (Lake County), 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.