Hancock County Climate
Hancock County, Maine
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
47.3°F
Annual Precip
55.5"
Annual Snowfall
—
Extreme Heat Days
3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,291
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Hancock County
Climate Verdict
Hancock County has a cool, averaging 47.3°F annually, very wet conditions receiving 55.5 inches of precipitation annually, rare extreme heat with only 3.2 days above 90°F annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 23.8°F. summers are pleasantly cool with July averaging 69.7°F. The 46°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Hancock County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Hancock County is 3.5°F warmer than the Maine statewide average of 43.8°F, it is also noticeably wetter, receiving 7.9 inches more precipitation than the state average.
Climate Profile
About Hancock County Weather
Coastal Maine's warmest and wettest corner
Hancock’s 47.3°F average temperature is higher than the state average but still trails the national median. Its position on the coast provides a significant warming effect compared to inland Maine.
The warmest county in this region
With an average of 47.3°F, it sits nearly 4 degrees above the Maine average of 43.8°F. It is one of the mildest climatic regions in the entire state.
Warmer and wetter than its neighbors
Hancock averages 55.5 inches of annual precipitation, significantly higher than Kennebec’s 44.9 inches. The maritime climate keeps it warmer than almost anywhere else in northern or central Maine.
Mild winters and rare extreme heat
The county only experiences 3 days above 90°F, while January stays relatively mild at 23.8°F. While specific snowfall data is unavailable, the 55.5 inches of total precipitation suggests a damp environment.
Focus on rain gear and drainage
High annual precipitation of 55.5 inches makes waterproof clothing and home drainage systems vital. Since summers are cool with a 67.5°F average, heavy cooling systems are rarely needed.
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.