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 | -4.3 | -2.0 | 0.4 | 4.3 | 8.3 | 11.7 | 13.3 | 12.8 | 9.7 | 5.7 | 0.0 | -2.7 | 4.8 |
| Avg. Max Temperature | -1.4 | 1.2 | 3.7 | 8.4 | 12.8 | 16.1 | 17.7 | 17.1 | 13.3 | 8.4 | 2.6 | -0.2 | 8.3 |
| Avg. Min Temperature | -7.2 | -5.2 | -2.9 | 0.1 | 3.8 | 7.2 | 8.9 | 8.5 | 6.1 | 2.9 | -2.7 | -5.2 | 1.2 |
| Days with Max Temp of 32 C 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 |
| |
|
| 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 |
| |
|
| 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 |
| |
|
| 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