Worcester averages 3.9 days a year above 90°F, with October the wettest month at 4.84 in of normal rain. The hottest day on record was 96°F on Aug 2, 1975; the coldest, −16°F on Feb 14, 2016. The single biggest 24-hour rain event recorded was 5 in on Aug 19, 1991.
Climate and Average Weather Year Round in Worcester
Year-round temperature
In Worcester, the warmest months are June through September, with average daily highs between 71°F and 80°F. The coldest stretch runs December through February, with highs between 32°F and 38°F and overnight lows reaching 17°F.
Rainfall through the year
Rainfall in Worcester averages 4.0 in per month over the long run. October is the wettest at 4.8 in, while February is the driest at 3.3 in.
Days at 90 °F or hotter
Worcester averages 3.9 days per year at 90 °F or hotter. The hottest year on record saw 9 such days (2022); the coolest just 1 (1989).
Precipitation this year
As of May 28, Worcester has received 15.1 in of precipitation this year — 17% below the long-term normal for this point in the year (18.3 in).