Alaska, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and Climate
Adak, AK

  • The average high temperature in September: 52.3°F

The warmest month (with the highest average high temperature) is August (55.8°F).
The month with the lowest average high temperature is February (37°F).

  • The average low temperature in September: 43.6°F

The month with the highest average low temperature is August (46.6°F).
The coldest month (with the lowest average low temperature) is February (28.5°F).

  • The average rainfall in September: 5.5"

The wettest month (with the highest rainfall) is December (7.7").
The driest month (with the lowest rainfall) is July (3").

  • The average rainfall days in September: 21 days

Months with the highest number of rainy days are March, October, November and December (25 days).
The month with the lowest number of rainy days is July (16 days).

  • The average snowfall in September: 0.1"

The month with the highest snowfall is March (20.1").
Months with the lowest snowfall are June, July and August (0").