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Climate & Weather Averages in Ketchikan Gateway Borough, Alaska, USA

Currently: 66 °F. Partly sunny. (Weather station: Ketchikan International Airport, USA). See more current weather

Annual Weather Averages Near Ketchikan Gateway Borough

Averages are for Ketchikan International Airport, which is 15 miles from Ketchikan Gateway Borough.

Based on weather reports collected during 1992–2021.

Jan
40
32
16.11
Feb
41
31
11.34
Mar
44
32
11.53
Apr
50
37
10.45
May
57
43
8.6
Jun
61
49
7.15
Jul
64
53
7.09
Aug
64
53
11.36
Sep
59
48
14.76
Oct
51
41
18.17
Nov
44
35
16.77
Dec
40
32
14.94

All Year Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 64 °F

Low Temp: 31 °F

Mean Temp: 46 °F

Precipitation: 12.36"

Humidity: 84%

Dew Point: 41 °F

Wind: 13 mph

Pressure: 30.00 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 40 °F

Low Temp: 32 °F

Mean Temp: 36 °F

Precipitation: 16.11"

Humidity: 88%

Dew Point: 33 °F

Wind: 14 mph

Pressure: 29.99 "Hg

Visibility: 8 mi

February Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 41 °F

Low Temp: 31 °F

Mean Temp: 36 °F

Precipitation: 11.34"

Humidity: 84%

Dew Point: 31 °F

Wind: 14 mph

Pressure: 30.04 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 44 °F

Low Temp: 32 °F

Mean Temp: 38 °F

Precipitation: 11.53"

Humidity: 82%

Dew Point: 33 °F

Wind: 13 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 50 °F

Low Temp: 37 °F

Mean Temp: 43 °F

Precipitation: 10.45"

Humidity: 80%

Dew Point: 37 °F

Wind: 14 mph

Pressure: 29.97 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 57 °F

Low Temp: 43 °F

Mean Temp: 50 °F

Precipitation: 8.60"

Humidity: 77%

Dew Point: 42 °F

Wind: 13 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

June Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 61 °F

Low Temp: 49 °F

Mean Temp: 55 °F

Precipitation: 7.15"

Humidity: 79%

Dew Point: 48 °F

Wind: 13 mph

Pressure: 30.01 "Hg

Visibility: 11 mi

July Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 64 °F

Low Temp: 53 °F

Mean Temp: 58 °F

Precipitation: 7.09"

Humidity: 82%

Dew Point: 52 °F

Wind: 13 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

August Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 64 °F

Low Temp: 53 °F

Mean Temp: 59 °F

Precipitation: 11.36"

Humidity: 83%

Dew Point: 53 °F

Wind: 13 mph

Pressure: 30.02 "Hg

Visibility: 10 mi

September Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 59 °F

Low Temp: 48 °F

Mean Temp: 53 °F

Precipitation: 14.76"

Humidity: 87%

Dew Point: 50 °F

Wind: 13 mph

Pressure: 29.98 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 51 °F

Low Temp: 41 °F

Mean Temp: 46 °F

Precipitation: 18.17"

Humidity: 88%

Dew Point: 43 °F

Wind: 13 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 44 °F

Low Temp: 35 °F

Mean Temp: 40 °F

Precipitation: 16.77"

Humidity: 87%

Dew Point: 36 °F

Wind: 13 mph

Pressure: 29.96 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Ketchikan Gateway Borough

High Temp: 40 °F

Low Temp: 32 °F

Mean Temp: 36 °F

Precipitation: 14.94"

Humidity: 87%

Dew Point: 33 °F

Wind: 13 mph

Pressure: 30.03 "Hg

Visibility: 8 mi

Quick Climate Info

Hottest MonthAugust (59 °F avg)
Coldest MonthDecember (36 °F avg)
Wettest MonthOctober (18.17" avg)
Windiest MonthApril (14 mph avg)
Annual precip.148.28" (per year)

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