Kenai Peninsula Borough Climate
Kenai Peninsula Borough, Alaska
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
37.3°F
Annual Precip
36.8"
Annual Snowfall
91.5"
Extreme Heat Days
0
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
489
Limited to cold-tolerant varieties
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Kenai Peninsula Borough
Climate Verdict
Kenai Peninsula Borough has a cold, with an average annual temperature of 37.3°F, moderate rainfall of 36.8 inches per year, rare extreme heat with only 0.006666666666666667 days above 90°F annually, heavy winter snowfall averaging 91.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 19.7°F. summers are cool, with July averaging only 56.2°F. The 37°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Kenai Peninsula Borough closely matches the Alaska statewide average temperature of 35.7°F, it is also noticeably drier, receiving 16.7 inches less precipitation than the state average.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.