Carroll County Climate
Carroll County, New Hampshire
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
44.2°F
Annual Precip
51.2"
Annual Snowfall
83.5"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
1,990
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Carroll County
Climate Verdict
Carroll County has a cool, averaging 44.2°F annually, moderately wet with 51.2 inches of annual precipitation, rare extreme heat with only 5.9 days above 90°F annually, heavy winter snowfall averaging 83.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 19.1°F. summers are pleasantly cool with July averaging 68.1°F. The 49°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
Carroll County closely matches the New Hampshire statewide average temperature of 45.4°F, it is somewhat wetter than average for New Hampshire.
Climate Profile
About Carroll County Weather
Deep Within the Cooler North
Carroll County’s 44.2°F annual average is nearly 10 degrees cooler than the national median. This reflects a rugged, high-latitude climate defined by long winters and brief, pleasant summers.
Colder Than the New Hampshire Average
At 44.2°F, the county is noticeably cooler than the state average of 45.4°F. It ranks among the chillier regions of New Hampshire due to its northern position and varying elevations.
Wetter Than Neighboring Grafton
The county records a high annual precipitation of 51.2 inches, significantly outpacing Grafton County's 42.8 inches. It also sees more snowfall, averaging 83.5 inches per year.
Heavy Snow and Crisp Winters
January is particularly cold here with an average temperature of 19.1°F. While summer heat is rare with only 6 days reaching 90°F, the 83.5 inches of annual snow defines the local lifestyle.
Built for Winter Endurance
High-performance insulation and reliable snow removal gear are non-negotiable for the 22.0°F winter average. Summer planning is simpler, as the average temperature stays a comfortable 65.8°F.
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.