Strafford County Climate
Strafford County, New Hampshire
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
47.3°F
Annual Precip
46.5"
Annual Snowfall
38.9"
Extreme Heat Days
10
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,347
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Strafford County
Climate Verdict
Strafford County has a cool, averaging 47.3°F annually, moderately wet with 46.5 inches of annual precipitation, rare extreme heat with only 10 days above 90°F annually, moderate snowfall of 38.9 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 23.7°F. summers are warm — July averages 70.3°F. The 47°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Strafford County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Strafford County closely matches the New Hampshire statewide average temperature of 45.4°F.
Climate Profile
About Strafford County Weather
Strafford's Temperate Continental Climate
Strafford County averages 47.3°F annually, making it significantly cooler than the national median temperature of approximately 53°F. This reflects a classic humid continental climate characterized by distinct, vigorous seasonal changes.
One of New Hampshire's Warmer Regions
At 47.3°F, Strafford remains nearly two degrees warmer than the New Hampshire state average of 45.4°F. Its annual precipitation of 46.5 inches almost exactly mirrors the statewide average of 46.4 inches.
Milder Than Its Inland Neighbors
Strafford is noticeably warmer and less snow-prone than Sullivan County, which averages only 44.3°F annually. While Strafford sees 38.9 inches of snow, its western counterparts often face much heavier winter totals.
Predictable Heat and Moderate Snow
The county experiences about 10 extreme heat days per year where temperatures exceed 90°F, primarily during the 70.3°F July average. Winter stays relatively mild for the state, with a December-to-February average of 26.4°F and 38.9 inches of total snowfall.
Planning for Consistent Coastal Precipitation
Residents should invest in reliable rain gear and drainage systems to handle 46.5 inches of annual precipitation. While snowfall is moderate compared to the mountains, heating systems must still handle January lows that average 23.7°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.