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Climate & Weather Averages in Arcata, California, USA

Currently: 55 °F. Fog. (Weather station: Arcata Airport, USA). See more current weather

Annual Weather Averages Near Arcata

Averages are for Arcata Airport, which is 8 miles from Arcata.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Arcata

High Temp: 64 °F

Low Temp: 39 °F

Mean Temp: 52 °F

Precipitation: 3.18"

Humidity: 85%

Dew Point: 47 °F

Wind: 9 mph

Pressure: 30.07 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Arcata

High Temp: 56 °F

Low Temp: 40 °F

Mean Temp: 48 °F

Precipitation: 5.78"

Humidity: 83%

Dew Point: 43 °F

Wind: 9 mph

Pressure: 30.12 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Arcata

High Temp: 56 °F

Low Temp: 40 °F

Mean Temp: 48 °F

Precipitation: 5.60"

Humidity: 83%

Dew Point: 42 °F

Wind: 10 mph

Pressure: 30.09 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Arcata

High Temp: 56 °F

Low Temp: 41 °F

Mean Temp: 49 °F

Precipitation: 5.32"

Humidity: 84%

Dew Point: 44 °F

Wind: 10 mph

Pressure: 30.10 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Arcata

High Temp: 57 °F

Low Temp: 42 °F

Mean Temp: 50 °F

Precipitation: 3.15"

Humidity: 84%

Dew Point: 45 °F

Wind: 10 mph

Pressure: 30.10 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Arcata

High Temp: 59 °F

Low Temp: 46 °F

Mean Temp: 53 °F

Precipitation: 1.56"

Humidity: 86%

Dew Point: 48 °F

Wind: 11 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Arcata

High Temp: 62 °F

Low Temp: 48 °F

Mean Temp: 55 °F

Precipitation: 0.74"

Humidity: 85%

Dew Point: 51 °F

Wind: 11 mph

Pressure: 30.04 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Arcata

High Temp: 63 °F

Low Temp: 51 °F

Mean Temp: 57 °F

Precipitation: 0.14"

Humidity: 87%

Dew Point: 53 °F

Wind: 9 mph

Pressure: 30.03 "Hg

Visibility: 8 mi

August Climate & Weather Averages in Arcata

High Temp: 64 °F

Low Temp: 51 °F

Mean Temp: 58 °F

Precipitation: 0.17"

Humidity: 88%

Dew Point: 54 °F

Wind: 8 mph

Pressure: 30.01 "Hg

Visibility: 8 mi

September Climate & Weather Averages in Arcata

High Temp: 64 °F

Low Temp: 48 °F

Mean Temp: 56 °F

Precipitation: 0.79"

Humidity: 86%

Dew Point: 52 °F

Wind: 7 mph

Pressure: 30.00 "Hg

Visibility: 8 mi

October Climate & Weather Averages in Arcata

High Temp: 63 °F

Low Temp: 45 °F

Mean Temp: 54 °F

Precipitation: 2.60"

Humidity: 85%

Dew Point: 49 °F

Wind: 7 mph

Pressure: 30.06 "Hg

Visibility: 8 mi

November Climate & Weather Averages in Arcata

High Temp: 58 °F

Low Temp: 42 °F

Mean Temp: 50 °F

Precipitation: 5.00"

Humidity: 85%

Dew Point: 45 °F

Wind: 8 mph

Pressure: 30.11 "Hg

Visibility: 8 mi

December Climate & Weather Averages in Arcata

High Temp: 55 °F

Low Temp: 39 °F

Mean Temp: 47 °F

Precipitation: 7.33"

Humidity: 83%

Dew Point: 42 °F

Wind: 10 mph

Pressure: 30.13 "Hg

Visibility: 9 mi

Quick Climate Info

Hottest MonthAugust (58 °F avg)
Coldest MonthDecember (47 °F avg)
Wettest MonthDecember (7.33" avg)
Windiest MonthMay (11 mph avg)
Annual precip.38.18" (per year)

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