Historical weather data, all-time temperature records, and monthly climate averages for Millbury, MA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Millbury is a coin-flip for rain — historically, more than half of all April 4ths have seen some precipitation, with a 12% chance it falls as snow. Temperatures typically land in the low 50s for a high and low 30s overnight, though the date has swung wildly from a balmy 75° in 1950 to a brutal 13° in 1954.
Millbury's weather has real teeth on both ends — the thermometer has climbed to 99° and crashed to -19°, a swing of 118 degrees over the station's history. A single August day in 1955 dumped 6.38 inches of rain, and a January 2015 snowstorm buried the area under nearly 32 inches in one shot.
Summer is the sweet spot, with highs peaking around 80-81° in mid-July before a gradual slide into fall. Winter bottoms out the third week of January, when average highs barely crack 31°. If you're watching the calendar for rain, late May into early June is the wettest stretch of the year.