TODAY NOV09
TEMPERATURE52
HUMIDITY37
PRESSURE
WIND COND.332 1.6
  • 6542Sat
  • 6544Sun40%
  • 563890%30%
  • 6039Tue
  • 6244Wed
daynightWeather update from KONOCTI at
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Weather Quick Facts

  • The highest monthly average temperature in Clearlake for July is 74.1 degrees
  • The lowest monthly average temperature in Clearlake for December is 44.4 degrees
  • The most monthly precipitation in Clearlake occurs in December with 7.1 inches
  • The air quality index in Clearlake is 26% better than the national average
  • The pollution index in Clearlake is 87% better than the national average

Compare Clearlake, CA Weather

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      Clearlake 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
      January35°F60°F45°F6.2"
      February38°F63°F48°F5.5"
      March40°F66°F51°F5.5"
      April42°F71°F55°F2.8"
      May47°F80°F62°F0.9"
      June52°F87°F68°F0.4"
      July56°F96°F74°F0.0"
      August54°F95°F72°F0.0"
      September50°F90°F68°F0.2"
      October45°F79°F59°F2.1"
      November40°F65°F51°F3.8"
      December35°F57°F44°F7.1"

      Clearlake 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.
      IndexClearlakeCaliforniaNational
      Air quality index315542
      Pollution index360,23810,473,1902,726,193

      Clearlake air quality

      MeasurementTotal
      Days measured360
      Days with good air quality360
      Days with moderate air quality0
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.002%
      Benzene0.004%
      Carbon Tetrachloride0.000%
      Lead0.002%
      Mercury0.000%

      Average monthly Clearlake temperature with heat index

      Clearlake monthly precipitation with daily maximum

      Clearlake monthly snow depth with daily maximum

      Clearlake monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Hidden Valley Lake, CA5,9483138.0%
      Soda Bay, CA7143138.0%
      Nice, CA2,4073138.0%
      Clearlake Riviera, CA4,4083138.0%
      Middletown, CA7253138.0%
      Clearlake, CA15,3293138.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Saugeen Shores, ON15,330n/a 
      Sainte-Anne-des-Plaines, QC15,334n/a 
      Americus, GA15,3193922.0%
      Westbury, NY15,339512.0%
      Clarksdale, MS15,3424314.0%
      Clearlake, CA15,3293138.0%
      Source: The Clearlake, 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.