Fremont County Climate
Fremont County, Idaho
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
41.1°F
Annual Precip
21.1"
Annual Snowfall
70.1"
Extreme Heat Days
7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
1,428
Limited to cold-tolerant varieties
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Fremont County
Climate Verdict
Fremont County has a cool, averaging 41.1°F annually, semi-arid conditions with only 21.1 inches of annual precipitation, rare extreme heat with only 7.2 days above 90°F annually, heavy winter snowfall averaging 70.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 19.0°F. summers are pleasantly cool with July averaging 64.5°F. The 46°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
Fremont County is 5.4°F cooler than the Idaho statewide average of 46.5°F, it is somewhat wetter than average for Idaho, the county experiences 22.99498418248419 fewer extreme heat days than the state average.
Climate Profile
About Fremont County Weather
A Cold and Snowy High Country Climate
Fremont County is one of the coolest spots in the nation with an annual average of 41.1°F. It sits well below the national median temperature, reflecting its high-elevation geography.
Significantly Colder Than the Idaho Average
Averaging 41.1°F, Fremont County is more than 5 degrees colder than the Idaho state average of 46.5°F. However, it receives 21.1 inches of precipitation, making it wetter than the state average.
The Snowiest Corner of the Region
Fremont receives 70.1 inches of snow, far outpacing the 47.3 inches seen in neighboring Clark County. It is also significantly wetter than other eastern Idaho counties due to its mountain topography.
Long Winters and Very Brief Summers
Winters are harsh with a January average of 19.0°F and heavy snow. Summers are very mild, with only 7 days per year reaching 90°F and a July average of just 64.5°F.
Invest in Serious Winter Infrastructure
Heating and snow removal are the primary concerns for residents facing 70 inches of snow and 19°F Januarys. Air conditioning is rarely a priority, as extreme heat occurs only about one week per year.
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.