Worcester Rgnl, MA Climate

Climate Insight: Worcester Rgnl, MA

In Worcester Rgnl, Massachusetts, the NOAA 1991–2020 climate normals put the annual average temperature at 48°F, ranging from a mean daily high of 57°F to a mean daily low of 40°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USW00094746, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Worcester Rgnl averages 48.3 inches of precipitation a year, with 72.9 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 181 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 23 and the first fall freeze near October 21. As for energy demand, 6,623 heating degree days and 502 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Worcester Rgnl scores 58/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.