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Climate & Weather Averages in Eureka, California, USA

Currently: 45 °F. Fog. (Weather station: Eureka, USA). See more current weather

Annual Weather Averages in Eureka

Based on weather reports collected during 2005–2015.

All Year Climate & Weather Averages in Eureka

High Temp: 65 °F

Low Temp: 37 °F

Mean Temp: 51 °F

Precipitation: 3.35"

Humidity: 84%

Dew Point: 46 °F

Wind: 5 mph

Pressure: 37.78 "Hg

Visibility: 8 mi

January Climate & Weather Averages in Eureka

High Temp: 56 °F

Low Temp: 37 °F

Mean Temp: 47 °F

Precipitation: 5.14"

Humidity: 82%

Dew Point: 41 °F

Wind: 5 mph

Pressure: 42.97 "Hg

Visibility: 8 mi

February Climate & Weather Averages in Eureka

High Temp: 55 °F

Low Temp: 38 °F

Mean Temp: 47 °F

Precipitation: 5.14"

Humidity: 81%

Dew Point: 41 °F

Wind: 6 mph

Pressure: 45.08 "Hg

Visibility: 8 mi

March Climate & Weather Averages in Eureka

High Temp: 56 °F

Low Temp: 39 °F

Mean Temp: 47 °F

Precipitation: 6.39"

Humidity: 82%

Dew Point: 42 °F

Wind: 7 mph

Pressure: 46.07 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Eureka

High Temp: 57 °F

Low Temp: 40 °F

Mean Temp: 48 °F

Precipitation: 3.86"

Humidity: 82%

Dew Point: 43 °F

Wind: 7 mph

Pressure: 36.71 "Hg

Visibility: 9 mi

May Climate & Weather Averages in Eureka

High Temp: 59 °F

Low Temp: 44 °F

Mean Temp: 51 °F

Precipitation: 1.40"

Humidity: 83%

Dew Point: 46 °F

Wind: 6 mph

Pressure: 33.27 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Eureka

High Temp: 62 °F

Low Temp: 47 °F

Mean Temp: 55 °F

Precipitation: 1.00"

Humidity: 85%

Dew Point: 50 °F

Wind: 6 mph

Pressure: 33.31 "Hg

Visibility: 8 mi

July Climate & Weather Averages in Eureka

High Temp: 63 °F

Low Temp: 50 °F

Mean Temp: 57 °F

Precipitation: 0.25"

Humidity: 87%

Dew Point: 52 °F

Wind: 5 mph

Pressure: 33.20 "Hg

Visibility: 7 mi

August Climate & Weather Averages in Eureka

High Temp: 64 °F

Low Temp: 50 °F

Mean Temp: 57 °F

Precipitation: 0.23"

Humidity: 88%

Dew Point: 53 °F

Wind: 5 mph

Pressure: 36.36 "Hg

Visibility: 7 mi

September Climate & Weather Averages in Eureka

High Temp: 65 °F

Low Temp: 47 °F

Mean Temp: 56 °F

Precipitation: 0.66"

Humidity: 85%

Dew Point: 51 °F

Wind: 4 mph

Pressure: 39.84 "Hg

Visibility: 8 mi

October Climate & Weather Averages in Eureka

High Temp: 63 °F

Low Temp: 45 °F

Mean Temp: 54 °F

Precipitation: 2.71"

Humidity: 83%

Dew Point: 48 °F

Wind: 4 mph

Pressure: 36.40 "Hg

Visibility: 8 mi

November Climate & Weather Averages in Eureka

High Temp: 59 °F

Low Temp: 41 °F

Mean Temp: 50 °F

Precipitation: 5.08"

Humidity: 83%

Dew Point: 45 °F

Wind: 4 mph

Pressure: 40.02 "Hg

Visibility: 8 mi

December Climate & Weather Averages in Eureka

High Temp: 55 °F

Low Temp: 38 °F

Mean Temp: 47 °F

Precipitation: 8.34"

Humidity: 82%

Dew Point: 41 °F

Wind: 6 mph

Pressure: 30.12 "Hg

Visibility: 8 mi

Quick Climate Info

Hottest MonthAugust (57 °F avg)
Coldest MonthJanuary (47 °F avg)
Wettest MonthDecember (8.34" avg)
Windiest MonthMarch (7 mph avg)
Annual precip.40.20" (per year)

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