Franklin County Climate
Franklin County, Massachusetts
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.1°F
Annual Precip
47.6"
Annual Snowfall
65.5"
Extreme Heat Days
10
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
2,580
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Franklin County
Climate Verdict
Franklin County has a cool, averaging 48.1°F annually, moderately wet with 47.6 inches of annual precipitation, rare extreme heat with only 9.850000000000001 days above 90°F annually, heavy winter snowfall averaging 65.5 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 23.9°F. summers are warm — July averages 71.5°F. The 48°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
Franklin County closely matches the Massachusetts statewide average temperature of 49.5°F.
Climate Profile
About Franklin County Weather
Inland Valley and Highlands
Franklin County’s 48.1°F average temperature is notably cooler than the national median and the state average. This inland region experiences a more pronounced continental climate with sharp seasonal shifts.
Cooler than the Commonwealth
Franklin sits 1.4 degrees below the Massachusetts average of 49.5°F. Its January average of 23.9°F highlights its position as one of the state's colder interior regions.
Neighboring the Pioneer Valley
Franklin is warmer than Berkshire County but cooler than Hampden County. It receives significantly more snow than many coastal peers, totaling 65.5 inches per year.
Significant Snow and Interior Heat
Residents face 65.5 inches of snow annually, the highest among these eight counties. While July averages 71.5°F, the county still records 10 days of extreme heat over 90°F.
Winter Readiness is Key
With over five feet of annual snow, heavy-duty winter gear and four-wheel-drive vehicles are local staples. The 47.6 inches of rain and 10 heat days require versatile home climate systems for all seasons.
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.