Millbury Massachusetts Climate Data

Monthly Average Climate Data for Millbury Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.8 °F34.7 °F3.81 in.
February16.9 °F37.3 °F3.34 in.
March24.9 °F44.9 °F4.59 in.
April35.2 °F57.7 °F4.38 in.
May46.0 °F68.3 °F3.59 in.
June55.2 °F76.5 °F4.22 in.
July61.0 °F81.9 °F3.86 in.
August59.3 °F80.3 °F4.16 in.
September51.4 °F73.5 °F4.06 in.
October40.2 °F61.5 °F4.99 in.
November30.6 °F50.5 °F3.83 in.
December22.2 °F40.2 °F4.65 in.
Annual38.2 °F58.9 °F49.48 in.

Climate Data for Millbury Massachusetts

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year