Home   Weather   Olympic Peninsula   Climate
Flag for USA

Climate & Weather Averages in Olympic Peninsula, Washington, USA

Currently: 61 °F. Scattered clouds. (Weather station: William R. Fairchild International Airport, USA). See more current weather

Annual Weather Averages in William R. Fairchild International Airport

William R. Fairchild International Airport is 28 miles from Olympic Peninsula, so the actual climate in Olympic Peninsula can vary a bit.

Based on weather reports collected during 1992–2021.

Jan
46
34
4.3
Feb
47
34
2.72
Mar
50
36
2.65
Apr
54
39
1.45
May
60
45
1.07
Jun
64
49
0.78
Jul
68
52
0.42
Aug
69
52
0.62
Sep
66
48
1.23
Oct
57
42
3.2
Nov
50
37
5.15
Dec
45
34
4.53

All Year Climate & Weather Averages in Olympic Peninsula

High Temp: 69 °F

Low Temp: 34 °F

Mean Temp: 49 °F

Precipitation: 2.34"

Humidity: 79%

Dew Point: 43 °F

Wind: 7 mph

Pressure: 30.05 "Hg

Visibility: 11 mi

January Climate & Weather Averages in Olympic Peninsula

High Temp: 46 °F

Low Temp: 34 °F

Mean Temp: 40 °F

Precipitation: 4.30"

Humidity: 87%

Dew Point: 36 °F

Wind: 5 mph

Pressure: 30.05 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Olympic Peninsula

High Temp: 47 °F

Low Temp: 34 °F

Mean Temp: 40 °F

Precipitation: 2.72"

Humidity: 82%

Dew Point: 35 °F

Wind: 5 mph

Pressure: 30.05 "Hg

Visibility: 10 mi

March Climate & Weather Averages in Olympic Peninsula

High Temp: 50 °F

Low Temp: 36 °F

Mean Temp: 43 °F

Precipitation: 2.65"

Humidity: 79%

Dew Point: 37 °F

Wind: 6 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

April Climate & Weather Averages in Olympic Peninsula

High Temp: 54 °F

Low Temp: 39 °F

Mean Temp: 47 °F

Precipitation: 1.45"

Humidity: 76%

Dew Point: 39 °F

Wind: 7 mph

Pressure: 30.04 "Hg

Visibility: 11 mi

May Climate & Weather Averages in Olympic Peninsula

High Temp: 60 °F

Low Temp: 45 °F

Mean Temp: 52 °F

Precipitation: 1.07"

Humidity: 75%

Dew Point: 44 °F

Wind: 9 mph

Pressure: 30.04 "Hg

Visibility: 12 mi

June Climate & Weather Averages in Olympic Peninsula

High Temp: 64 °F

Low Temp: 49 °F

Mean Temp: 56 °F

Precipitation: 0.78"

Humidity: 75%

Dew Point: 48 °F

Wind: 10 mph

Pressure: 30.04 "Hg

Visibility: 12 mi

July Climate & Weather Averages in Olympic Peninsula

High Temp: 68 °F

Low Temp: 52 °F

Mean Temp: 60 °F

Precipitation: 0.42"

Humidity: 74%

Dew Point: 52 °F

Wind: 10 mph

Pressure: 30.06 "Hg

Visibility: 11 mi

August Climate & Weather Averages in Olympic Peninsula

High Temp: 69 °F

Low Temp: 52 °F

Mean Temp: 60 °F

Precipitation: 0.62"

Humidity: 74%

Dew Point: 52 °F

Wind: 8 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

September Climate & Weather Averages in Olympic Peninsula

High Temp: 66 °F

Low Temp: 48 °F

Mean Temp: 57 °F

Precipitation: 1.23"

Humidity: 76%

Dew Point: 49 °F

Wind: 5 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

October Climate & Weather Averages in Olympic Peninsula

High Temp: 57 °F

Low Temp: 42 °F

Mean Temp: 50 °F

Precipitation: 3.20"

Humidity: 82%

Dew Point: 44 °F

Wind: 5 mph

Pressure: 30.06 "Hg

Visibility: 10 mi

November Climate & Weather Averages in Olympic Peninsula

High Temp: 50 °F

Low Temp: 37 °F

Mean Temp: 43 °F

Precipitation: 5.15"

Humidity: 85%

Dew Point: 39 °F

Wind: 5 mph

Pressure: 30.04 "Hg

Visibility: 10 mi

December Climate & Weather Averages in Olympic Peninsula

High Temp: 45 °F

Low Temp: 34 °F

Mean Temp: 40 °F

Precipitation: 4.53"

Humidity: 86%

Dew Point: 36 °F

Wind: 6 mph

Pressure: 30.06 "Hg

Visibility: 10 mi

Quick Climate Info

Hottest MonthAugust (60 °F avg)
Coldest MonthDecember (40 °F avg)
Wettest MonthNovember (5.15" avg)
Windiest MonthJuly (10 mph avg)
Annual precip.28.12" (per year)

Weather by CustomWeather, © 2025