Average Annual Precipitation for Alaska





The tables below give yearly averages for rainfall plus snowfall at communities and other locations around Alaska.

Each place has a total for the amount of precipitation it usually receives in a year. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The annual precipitation totals are averages based on weather data collected from 1991 to 2020 for the NOAA National Climatic Data Center.

You can jump to a separate table for each region of the state: Southeast, South - Central, Southwest, Interior and Far North Alaska.

Southeast Alaska

Average yearly precipitation
Days Place Inches Milli­metres
231 Annette Island 103.5 2629
187 Haines 63.1 1602
230 Juneau 67.0 1702
233 Ketchikan 149.5 3798
235 Sitka 84.5 2146
151 Skagway 25.2 640
237 Yakutat 140.4 3565

South - Central Alaska

Annual averages for rainfall plus snowfall
Days Place Inches Milli­metres
115 Anchorage 16.4 417
101 Gulkana 11.8 299
156 Homer 23.9 607
171 Seward 69.7 1771
140 Talkeetna 26.5 673
198 Valdez 67.9 1725

Southwest Alaska

Average amount of rain and snow a year
Days Place Inches Milli­metres
151 Bethel 19.7 500
250 Cold Bay 42.7 1084
159 King Salmon 21.4 545
204 Kodiak 78.3 1989
137 McGrath 18.1 458
95 Port Alsworth 13.1 332
202 St Paul Island 24.3 618

Interior Alaska

Average annual precipitation
Days Place Inches Milli­metres
107 Fairbanks 11.7 296
123 McKinley Park 15.9 404
98 Tanana 11.5 291
63 Tok 10.6 269

Far North Alaska

Annual precipitation totals
Days Place Inches Milli­metres
98 Barrow 5.4 137
129 Bettles 16.0 407
113 Kotzebue 11.4 289
131 Nome 17.2 437
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Alaska Precipitation
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