Kenai Peninsula Borough Climate
Kenai Peninsula Borough, Alaska
Avg Annual Temp
37.3°F
Annual Precip
36.8"
Annual Snowfall
91.5"
Extreme Heat Days
0.006666666666666667
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Kenai Peninsula Borough Weather
Coastal Subarctic Conditions on the Peninsula
The Kenai Peninsula averages 37.3°F annually, making it much cooler than the typical U.S. county. Its climate is dictated by its proximity to the Cook Inlet and the Gulf of Alaska.
Slightly Warmer than the State Mean
The borough's 37.3°F average is slightly higher than the Alaska state average of 35.9°F. It experiences more moderate winters than the interior, with a January average of 19.7°F.
Drier than the Southeast Panhandle
With 36.8 inches of annual precipitation, Kenai is much drier than Juneau’s 92.5 inches. However, it still receives a significant 91.5 inches of annual snowfall, which is comparable to Southeast Alaska.
Crisp Summers and Consistent Snow
Summers are mild and peak at a 56.2°F average in July, with no extreme heat recorded. Winter lasts long with a December-February average of 21.9°F and nearly 92 inches of snow.
Equip for Wind and Winter Snow
Coastal winds require wind-resistant outer layers, while the 91.5 inches of snow necessitates reliable winter equipment. Homeowners should focus on insulation and winterizing pipes against the 19.7°F January lows.
Frequently Asked Questions
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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.