Clearlake (CA) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Clearlake

Clearlake average temperature chart (Celsius) Clearlake average temperature chart (Fahrenheit)
Average monthly temperatures in Clearlake (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11.7 14.1 15 18.2 22.5 26.5 29.7 29.3 27.5 22.9 15.3 11.5
°F 53 57.4 59 64.7 72.4 79.7 85.5 84.7 81.5 73.1 59.5 52.6

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Clearlake monthly rainfall chart (mm) Clearlake monthly rainfall chart (inches)
Average monthly rainfall in Clearlake (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 205 153 121 59 18 9 2 5 13 52 132 171
inches 8.1 6 4.8 2.3 0.7 0.3 0.1 0.2 0.5 2.1 5.2 6.7
Rainy days 11 10 12 7 4 3 2 2 3 5 10 11

Average annual rainfall in Clearlake: 855.434mm (336.8 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Clearlake

Clearlake average daily sunshine chart
Average daily sunshine Clearlake
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.1 7.6 9.1 11.1 12.1 12.5 12.6 11.5 10.7 9.1 6.4 5.6

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Clearlake average minimum / maximum temperatures (Celsius) Clearlake average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Clearlake (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.1 2.6 2.9 4.1 7 9.7 11.2 10.9 9.5 6.6 3.3 1.3
Max °C 12 14.4 15.3 18.5 22.9 26.9 30.2 29.8 28 23.3 15.6 11.7
Min °F 33.9 36.7 37.2 39.4 44.5 49.5 52.2 51.5 49 43.8 37.9 34.3
Max °F 43.7 47.3 48.4 52.3 58.8 64.9 69.3 68.5 65.7 58.8 48.9 43.7

Sea temperature

The graph below shows the average sea temperature.

Clearlake average sea temperature chart (Celsius) Clearlake average sea temperature chart (Fahrenheit)
Average sea temperature around Clearlake in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.1 12 11.9 11.7 11.8 12.2 13.1 14 14.4 14 13.4 12.6
°F 53.8 53.6 53.5 53.1 53.2 54 55.5 57.2 57.9 57.3 56.1 54.6

Wind speed

The graph below shows the average wind speed.

Clearlake average winspeed by month (km/h) Clearlake average winspeed by month (mph)
Average wind speed in Clearlake (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 11 13 15 16 17 18 17 16 14 12 12 12
mph 7 8 9 10 11 11 11 10 9 8 7 7

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Clearlake relative humidity averages
Average relative humidity in Clearlake
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
80% 76% 71% 67% 65% 63% 62% 64% 64% 68% 77% 81%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Clearlake weather stats

Clearlake weather statistics
Hottest month: July 29.7°C 85.5°F
Driest month: July 2mm 0.1ins
Sunniest month: July 12.6hrs
Coldest month: January 11.7°C 53.1°F
Wettest month: January 205mm 8.1ins
Warmest sea: September 14.4°C 57.9°F
Map showing location of Clearlake (38.95823, -122.62637) Clearlake map pin © Google

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