Yukon-Koyukuk Census Area Climate
Yukon-Koyukuk Census Area, Alaska
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
25.3°F
Annual Precip
15.2"
Annual Snowfall
77.9"
Extreme Heat Days
0
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
745
Limited to cold-tolerant varieties
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Yukon-Koyukuk Census Area
Climate Verdict
Yukon-Koyukuk Census Area has a cold, with an average annual temperature of 25.3°F, semi-arid conditions with only 15.2 inches of annual precipitation, rare extreme heat with only 0.18181818181818185 days above 90°F annually, heavy winter snowfall averaging 77.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are severe, with January averaging a frigid -9.2°F. summers are cool, with July averaging only 59.6°F. Residents experience a substantial 69°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Yukon-Koyukuk Census Area is 10.4°F cooler than the Alaska statewide average of 35.7°F, it is also noticeably drier, receiving 38.3 inches less precipitation than the state average.
Climate Profile
About Yukon-Koyukuk Census Area Weather
One of the coldest places in America
The 25.3°F annual average here is more than 30 degrees below the national median. This vast region experiences a true subarctic climate with some of the lowest average temperatures in the country.
Falling far below the Alaska average
This area is significantly colder than the state average of 35.9°F. Its 25.3°F average reflects the harsh conditions of the Alaskan interior, far removed from the moderating influence of the ocean.
Colder than the Southeast Fairbanks area
At 25.3°F, Yukon-Koyukuk is slightly colder than its neighbor, Southeast Fairbanks, which averages 26.1°F. Both share a dry climate, with Yukon-Koyukuk receiving only 15.2 inches of total precipitation annually.
Severe winters and short, mild summers
Winter temperatures average a frozen -5.0°F, accompanied by 77.9 inches of annual snowfall. July offers a brief window of 59.6°F weather, but extreme heat days above 90°F are non-existent.
Survival requires extreme cold preparation
Reliable, high-capacity heating is a matter of survival given January averages of -9.2°F. Residents must manage nearly 78 inches of snow and keep specialized gear ready for months of sub-zero conditions.
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.