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Juneau, AK weather and climate

Juneau City and Borough, AK · population 31,969 · about 686 ft elevation

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

The year at a glance

Sunny days
81
clear or partly cloudy, per year
Precipitation
117 in
per year
Wet days
242
rain or snow per year
Snowfall
82 in
per year
Hot days
0
above 90 °F
Freezing nights
133
at or below 32 °F
Humidity
82%
average relative
Average temperature
40 °F
year round

Monthly temperatures

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

Daily highDaily low
204060JanMarMayJulSepNovDaily high, Jan: 30 °FDaily high, Feb: 33 °FDaily high, Mar: 38 °FDaily high, Apr: 47 °FDaily high, May: 55 °FDaily high, Jun: 60 °FDaily high, Jul: 60 °FDaily high, Aug: 60 °FDaily high, Sep: 54 °FDaily high, Oct: 46 °FDaily high, Nov: 36 °FDaily high, Dec: 31 °FDaily low, Jan: 21 °FDaily low, Feb: 24 °FDaily low, Mar: 27 °FDaily low, Apr: 33 °FDaily low, May: 40 °FDaily low, Jun: 46 °FDaily low, Jul: 48 °FDaily low, Aug: 47 °FDaily low, Sep: 44 °FDaily low, Oct: 37 °FDaily low, Nov: 29 °FDaily low, Dec: 24 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high303338475560606054463631
Daily low212427334046484744372924

Monthly precipitation

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

051015JanMarMayJulSepNovJuneau, Jan: 11.5 inJuneau, Feb: 8.7 inJuneau, Mar: 8.5 inJuneau, Apr: 6.4 inJuneau, May: 5.6 inJuneau, Jun: 5.2 inJuneau, Jul: 7.0 inJuneau, Aug: 10.0 inJuneau, Sep: 14.5 inJuneau, Oct: 14.9 inJuneau, Nov: 12.1 inJuneau, Dec: 12.8 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Juneau11.58.78.56.45.65.27.010.014.514.912.112.8

Monthly sunny days

Days each month with clear or partly cloudy skies.

0510JanMarMayJulSepNovJuneau, Jan: 7 daysJuneau, Feb: 7 daysJuneau, Mar: 8 daysJuneau, Apr: 8 daysJuneau, May: 10 daysJuneau, Jun: 7 daysJuneau, Jul: 5 daysJuneau, Aug: 7 daysJuneau, Sep: 5 daysJuneau, Oct: 5 daysJuneau, Nov: 5 daysJuneau, Dec: 6 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Juneau7788107575556

Compare Juneau 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).