Unalaska
Alaska, USA
Long-term weather forecast
Long-term weather forecast
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January weather forecast and Climate
Unalaska, AK

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  • The average high temperature in January: 36.8°F

The warmest month (with the highest average high temperature) is August (58.9°F).
The month with the lowest average high temperature is January (36.8°F).

  • The average low temperature in January: 28.1°F

The month with the highest average low temperature is August (47.7°F).
The coldest month (with the lowest average low temperature) is February (27.6°F).

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  • The average rainfall in January: 7.3"

The wettest month (with the highest rainfall) is December (7.9").
The driest month (with the lowest rainfall) is July (2.2").

  • The average rainfall days in January: 21 days

Months with the highest number of rainy days are October, November and December (23 days).
The month with the lowest number of rainy days is July (13 days).

  • The average snowfall in January: 23.8"

The month with the highest snowfall is January (23.8").
Months with the lowest snowfall are June, July, August and September (0").

  • The average sea temperature in January: 39.5°F

The best month for swimming (with the highest average sea temperature) is August (50.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

  • The average daylight in January: 8h

The month with the longest days is June (Average daylight: 17h).
The month with shortest days is December (Average daylight: 7h).

  • The average sunshine in January: 6h

Months with most sunshine are May and June (Average sunshine: 8h).
Months with least sunshine are November and December (Average sunshine: 5).

  • The average UV index in January: 0

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January and December (UV index 0).

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