Average Annual Precipitation for Alaska





The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Alaska.

Each place has a total for the amount of precipitation it usually receives in a year. Most locations also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The annual precipitation totals are averages based on weather data collected from 1981 to 2010 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 101.6 2581
Glacier Bay 78.6 1997
Haines 46.5 1182
239 Juneau 92.2 2342
234 Ketchikan 141.3 3588
236 Sitka 86.8 2205
Wrangell 91.2 2317
240 Yakutat 155.1 3940

South - Central Alaska

Annual averages for rainfall plus snowfall
Days Place Inches Milli­metres
115 Anchorage 16.6 421
101 Gulkana 11.3 286
151 Homer 24.3 618
172 Seward 73.3 1862
143 Talkeetna 28.0 710
200 Valdez 69.0 1753

Southwest Alaska

Average amount of rain and snow a year
Days Place Inches Milli­metres
146 Bethel 18.5 471
249 Cold Bay 41.7 1058
156 King Salmon 19.5 495
203 Kodiak 78.0 1981
142 McGrath 18.0 457
99 Port Alsworth 13.2 336
203 St Paul Island 23.7 601
239 Shemya Island 31.9 809

Interior Alaska

Average annual precipitation
Days Place Inches Milli­metres
109 Fairbanks 10.8 275
113 McKinley Park 15.1 383
101 Tanana 11.6 294
57 Tok 9.5 240

Far North Alaska

Annual precipitation totals
Days Place Inches Milli­metres
88 Barrow 4.5 115
125 Bettles 14.9 378
113 Kotzebue 11.0 279
133 Nome 16.8 427
67 Prudhoe Bay 4.0 103
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

Alaska Precipitation
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