Juneau
The tables below display average monthly climate and weather indicators in Juneau Alaska.
Temperature by: Fahrenheit / Centigrade
Juneau Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Avg. Temperature | 24.2 | 28.4 | 32.7 | 39.7 | 47.0 | 53.0 | 56.0 | 55.0 | 49.4 | 42.2 | 32.0 | 27.1 | 40.6 |
Avg. Max Temperature | 29.4 | 34.1 | 38.7 | 47.2 | 55.1 | 60.9 | 63.9 | 62.7 | 55.9 | 47.1 | 36.7 | 31.6 | 46.9 |
Avg. Min Temperature | 19.0 | 22.7 | 26.7 | 32.1 | 38.9 | 45.0 | 48.1 | 47.3 | 42.9 | 37.2 | 27.2 | 22.6 | 34.1 |
Days with Max Temp of 90 F or Higher | 0.0 | 0.0 | 0.0 | < 0.5 | 1.0 | 5.0 | 7.0 | 6.0 | < 0.5 | 0.0 | 0.0 | 0.0 | 19.0 |
Days with Min Temp Below Freezing | 25.0 | 22.0 | 23.0 | 14.0 | 3.0 | < 0.5 | 0.0 | < 0.5 | 1.0 | 8.0 | 18.0 | 23.0 | 139 |
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Juneau Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Heating Degree Days | 1265 | 1025 | 1001 | 759 | 558 | 360 | 279 | 310 | 468 | 707 | 990 | 1175 | 8897 |
Cooling Degree Days | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
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Juneau Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Precipitation (inches) | 4.5 | 3.8 | 3.3 | 2.8 | 3.4 | 3.2 | 4.2 | 5.3 | 6.7 | 7.8 | 4.9 | 4.4 | 54.3 |
Days with Precipitation 0.01 inch or More | 18.0 | 17.0 | 18.0 | 17.0 | 17.0 | 15.0 | 17.0 | 18.0 | 20.0 | 23.0 | 20.0 | 21.0 | 222 |
Monthly Snowfall (inches) | 25.7 | 19.0 | 15.2 | 3.3 | 0.0 | < 0.05 | 0.0 | 0.0 | < 0.05 | 1.0 | 12.5 | 22.3 | 99.0 |
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Other Juneau Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Average Wind Speed | 8.0 | 8.4 | 8.4 | 8.6 | 8.3 | 7.7 | 7.5 | 7.4 | 8.0 | 9.5 | 8.4 | 8.9 | 8.3 |
Clear Days | 6.0 | 4.0 | 4.0 | 4.0 | 4.0 | 3.0 | 3.0 | 4.0 | 3.0 | 2.0 | 4.0 | 3.0 | 44.0 |
Partly Cloudy Days | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 4.0 | 5.0 | 5.0 | 3.0 | 2.0 | 2.0 | 2.0 | 41.0 |
Cloudy Days | 23.0 | 21.0 | 23.0 | 22.0 | 23.0 | 22.0 | 23.0 | 22.0 | 24.0 | 27.0 | 24.0 | 25.0 | 280 |
Percent of Possible Sunshine | 32.0 | 32.0 | 37.0 | 39.0 | 39.0 | 34.0 | 31.0 | 32.0 | 26.0 | 19.0 | 23.0 | 20.0 | 30.0 |
Avg. Relative Humidity | 54.0 | 76.5 | 75.0 | 71.5 | 68.0 | 67.0 | 69.0 | 73.5 | 77.0 | 78.0 | 77.0 | 78.0 | 78.5 |
Weather information for other cities in Alaska