Groveland, MA Climate

Climate Insight: Groveland, MA

In Groveland, Massachusetts, the NOAA 1991–2020 climate normals put the annual average temperature at 49°F, ranging from a mean daily high of 60°F to a mean daily low of 39°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00193276, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Groveland sees about 49.0 inches of precipitation a year, with 67.1 inches typically falling as snow. The frost-free season averages 158 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 3 and the first fall freeze near October 8. On the energy side, 6,323 heating degree days and 621 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Groveland scores 54/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.