Alaska Climate Data
NOAA 30-year climate normals for all 30 counties.
State Avg Temp
35.9°F
Hottest County
Ketchikan Gateway Borough
46.6°F avg
Coldest County
North Slope Borough
14.5°F avg
Wettest County
Ketchikan Gateway Borough
153.4" precip
All Alaska Counties
Aleutians East Borough
39.3°F avg
Aleutians West Census Area
38.1°F avg
Anchorage Municipality
36.7°F avg
Bethel Census Area
31.4°F avg
Bristol Bay Borough
36.5°F avg
Chugach Census Area
40.3°F avg
Copper River Census Area
27.8°F avg
Denali Borough
28.0°F avg
Dillingham Census Area
Data pending
Fairbanks North Star Borough
28.5°F avg
Haines Borough
39.9°F avg
Hoonah-Angoon Census Area
41.9°F avg
Juneau City and Borough
41.9°F avg
Kenai Peninsula Borough
37.3°F avg
Ketchikan Gateway Borough
46.6°F avg
Kodiak Island Borough
40.7°F avg
Kusilvak Census Area
Data pending
Lake and Peninsula Borough
37.6°F avg
Matanuska-Susitna Borough
34.6°F avg
Nome Census Area
28.0°F avg
North Slope Borough
14.5°F avg
Northwest Arctic Borough
23.4°F avg
Petersburg Borough
43.0°F avg
Prince of Wales-Hyder Census Area
45.0°F avg
Sitka City and Borough
43.9°F avg
Skagway Municipality
42.2°F avg
Southeast Fairbanks Census Area
26.1°F avg
Wrangell City and Borough
44.9°F avg
Yakutat City and Borough
41.1°F avg
Yukon-Koyukuk Census Area
25.3°F avg
Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.