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Ketchikan, AK weather and climate

Ketchikan Gateway Borough, AK · population 8,151 · about 531 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Ketchikan's own coordinates.

The year at a glance

Sunny days
88
clear or partly cloudy, per year
Precipitation
123 in
per year
Wet days
227
rain or snow per year
Snowfall
23 in
per year
Hot days
0
above 90 °F
Freezing nights
68
at or below 32 °F
Humidity
83%
average relative
Average temperature
47 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
30405060JanMarMayJulSepNovDaily high, Jan: 39 °FDaily high, Feb: 41 °FDaily high, Mar: 44 °FDaily high, Apr: 51 °FDaily high, May: 58 °FDaily high, Jun: 63 °FDaily high, Jul: 65 °FDaily high, Aug: 66 °FDaily high, Sep: 60 °FDaily high, Oct: 51 °FDaily high, Nov: 44 °FDaily high, Dec: 40 °FDaily low, Jan: 32 °FDaily low, Feb: 32 °FDaily low, Mar: 34 °FDaily low, Apr: 38 °FDaily low, May: 44 °FDaily low, Jun: 50 °FDaily low, Jul: 54 °FDaily low, Aug: 54 °FDaily low, Sep: 49 °FDaily low, Oct: 42 °FDaily low, Nov: 37 °FDaily low, Dec: 33 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high394144515863656660514440
Daily low323234384450545449423733

Monthly precipitation

Total rain plus melted snow for each month, in inches.

051015JanMarMayJulSepNovKetchikan, Jan: 12.6 inKetchikan, Feb: 9.3 inKetchikan, Mar: 9.7 inKetchikan, Apr: 8.4 inKetchikan, May: 6.4 inKetchikan, Jun: 5.5 inKetchikan, Jul: 6.0 inKetchikan, Aug: 9.4 inKetchikan, Sep: 13.2 inKetchikan, Oct: 15.6 inKetchikan, Nov: 13.9 inKetchikan, Dec: 13.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Ketchikan12.69.39.78.46.45.56.09.413.215.613.913.3

Monthly sunny days

Days each month with clear or partly cloudy skies.

0510JanMarMayJulSepNovKetchikan, Jan: 6 daysKetchikan, Feb: 8 daysKetchikan, Mar: 8 daysKetchikan, Apr: 8 daysKetchikan, May: 10 daysKetchikan, Jun: 8 daysKetchikan, Jul: 8 daysKetchikan, Aug: 9 daysKetchikan, Sep: 7 daysKetchikan, Oct: 6 daysKetchikan, Nov: 5 daysKetchikan, Dec: 5 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Ketchikan6888108897655

Compare Ketchikan with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Alaska city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).