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Weather and Water

Lake County has a Mediterranean-style climate with four distinct seasons, including a lush and vibrant spring, a long dry and warm summer, an autumn with warm days and cool nights, and a wet, mild winter with occasional snow on the mountaintops.

Because Lake County is situated in between the California Coast and the Central Valley in the Pacific Coast Range of mountains with Clear Lake, the largest natural lake in California at its center, the seasons are distinct, making Lake County a year-round visitor destination.

Weather Averages (Farenheit)

Average Temperatures Highs Lows
January-March 60º 32º
April-June 80º 48º
July-September 95º 57º
October-December 65º 44º

Average Humidity
Winter 50%
Summer/Fall 30%

Average Annual Rainfall
Clear Lake Basin 25 inches
Middletown area 45 inches
Cobb Mountain 60 inches

Clear Lake Average Water Temperature
December 48º
March 53º
June 66º
August 75º

Current Lake County Weather - www.co.lake.ca.us

Current Clear Lake Water Level - www.waterdata.usgs.gov

Current Dam Releases - www.waterdata.usgs.gov

Information on Clear Lake - www.co.lake.ca.us


Winter Sunrise over Clear Lake 
Winter sunrise over Clear Lake

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