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Juneau, AK Weather


Juneau, AK climate is cool during summer when temperatures tend to be in the 50's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 64.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 20.70 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 15 degrees Fahrenheit, and fairly limited during winter with an average difference of 10 degrees Fahrenheit.

The annual average precipitation at Juneau is 86.98 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is October with an average rainfall of 13.52 Inches.

Weather Data

Normal Climate

Normal Temperatures

(JUNEAU INTL AP Weather station, 6.70 miles from Juneau)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 30.6 34.3 39.5 48.1 55.7 61.6 64.3 63.1 56.1 46.9 37.6 33.0 47.6
Mean °F 25.7 28.9 33.7 40.8 47.9 53.9 56.8 55.7 50.0 42.3 33.3 28.7 41.5
Min °F 20.7 23.5 27.8 33.4 40.1 46.1 49.2 48.3 43.8 37.7 28.9 24.4 35.3

Normal Precipitation

(JUNEAU 2 Weather station, 0.72 miles from Juneau)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 6.89 6.16 5.71 4.93 5.37 4.58 5.27 7.22 11.19 13.52 7.99 8.15 86.98