Washington County Climate
Washington County, Maine
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
43.8°F
Annual Precip
49.2"
Annual Snowfall
86.1"
Extreme Heat Days
3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
1,874
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Washington County
Climate Verdict
Washington County has a cool, averaging 43.8°F annually, moderately wet with 49.2 inches of annual precipitation, rare extreme heat with only 3.311111111111111 days above 90°F annually, heavy winter snowfall averaging 86.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 18.2°F. summers are pleasantly cool with July averaging 67.2°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
Washington County closely matches the Maine statewide average temperature of 43.8°F.
Climate Profile
About Washington County Weather
The brisk edge of Down East
Washington County averages 43.8°F, which is roughly 10 degrees cooler than the median U.S. county. This humid continental climate is heavily influenced by the cold waters of the Gulf of Maine.
Defining the Maine average
The county’s 43.8°F average perfectly matches the statewide annual temperature for Maine. It serves as the benchmark for the state’s weather patterns, balancing coastal and northern influences.
Maine's wettest eastern corner
Washington County receives 49.2 inches of precipitation, making it wetter than Waldo (48.8) and Penobscot (43.8). It also sees significantly more snow than Waldo, averaging 86.1 inches.
Foggy summers and snowy winters
July averages 67.2°F, but the county only sees about 3 days of extreme heat per year. Winters bring 86.1 inches of snow and January temperatures that average a cold 18.2°F.
Gear up for heavy precipitation
High-quality rain gear and waterproof home sealing are essential for the 49.2 inches of annual rainfall. Winter prep should account for the 21.5°F seasonal average and nearly 90 inches of snow.
Frequently Asked Questions
What is the average temperature in Washington County?
How much rain does Washington County get?
Does it snow in Washington County?
How hot does Washington County get in summer?
How cold are winters in Washington County?
Track your own weather in Washington County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.