TODAY JUN25
TEMPERATURE59
HUMIDITY72
PRESSURE
WIND COND.
  • 8958Tue
  • 8857Wed
  • 8758Thu
  • 9161Fri
  • 9462Sat
daynightWeather update from KONOCTI at

Clearlake Average Weather

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
January19°F76°F44°F5.5"
February27°F76°F47°F5.8"
March28°F88°F50°F3.8"
April30°F97°F54°F2.8"
May36°F102°F62°F1.3"
June39°F107°F67°F0.3"
July46°F112°F74°F0.0"
August46°F108°F72°Fn/a
September39°F109°F67°F0.1"
October32°F93°F58°F1.4"
November28°F82°F50°F3.1"
December19°F79°F44°F7.3"

Did you know?

  • The highest monthly average temperature in Clearlake for July is 74 degrees.
  • The lowest monthly average temperature in Clearlake for December is 44 degrees.
  • The most monthly precipitation in Clearlake occurs in December with 7.3 inches.
  • The air quality index in Clearlake is 37% better than the national average.
  • The pollution index in Clearlake is 92% better than the national average.

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Compare Clearlake, CA Weather To Other Cities

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 index315550
Pollution index360,23818,106,7265,066,862

Clearlake air quality information

MeasurementTotal
Days measured365
Days with good air quality359
Days with moderate air quality6
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Clearlake air quality information

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

City, StatePopulationAir Quality IndexNational Avg.
Upper Lake, CA7762648%
North Lakeport, CA2,8512648%
Cobb, CA1,1223138%
Lucerne, CA3,1633138%
Soda Bay, CA1,4953138%
Clearlake, CA15,0703138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Sterling, IL15,071536%
Cherryland, CA15,066484%
Otsego, MN15,0654412%
Hereford, TX15,0864020%
Newton, IA15,0904118%
Clearlake, CA15,0703138%
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.