Worcester County Climate
Worcester County, Massachusetts
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
47.6°F
Annual Precip
48.4"
Annual Snowfall
57.1"
Extreme Heat Days
8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,461
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Worcester County
Climate Verdict
Worcester County has a cool, averaging 47.6°F annually, moderately wet with 48.4 inches of annual precipitation, rare extreme heat with only 7.7 days above 90°F annually, moderate snowfall of 57.1 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 70.8°F. The 47°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
Worcester County closely matches the Massachusetts statewide average temperature of 49.5°F.
Climate Profile
About Worcester County Weather
Worcester's Cold Continental Climate
Worcester County is the coolest in this set, with an average annual temperature of 47.6°F. Its higher elevation and inland location place it significantly below the national temperature median.
Well Below the State Average
The county's 47.6°F average is nearly two degrees cooler than the 49.5°F Massachusetts state average. It acts as a cold pocket for the state, frequently recording the earliest frosts and latest thaws.
The Snowiest Neighbor
Worcester averages 57.1 inches of snow, the highest among its eastern neighbors. It is significantly cooler and snowier than neighboring Suffolk, which averages 51.5°F and only 49.2 inches of snow.
Mild Summers and Harsh Winters
Winters are biting with a 26.3°F average and January lows of 23.7°F. Summers are relatively mild, with July averaging 70.8°F and only 8 days of extreme heat reaching 90°F.
Winterize for the Long Haul
Superior home insulation and reliable heating systems are essential to handle the 26.3°F winter average. Residents should prioritize high-quality winter tires and snowblowers to manage the 57.1 inches of annual snow.
Frequently Asked Questions
What is the average temperature in Worcester County?
How much rain does Worcester County get?
Does it snow in Worcester County?
How hot does Worcester County get in summer?
How cold are winters in Worcester County?
Track your own weather in Worcester 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.