Millbury Massachusetts Climate Data

Monthly Average Climate Data for Millbury Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9 °C1.5 °C96.77 mm
February-8.4 °C2.9 °C84.84 mm
March-3.9 °C7.2 °C116.59 mm
April1.8 °C14.3 °C111.25 mm
May7.8 °C20.2 °C91.19 mm
June12.9 °C24.7 °C107.19 mm
July16.1 °C27.7 °C98.04 mm
August15.2 °C26.8 °C105.66 mm
September10.8 °C23.1 °C103.12 mm
October4.6 °C16.4 °C126.75 mm
November-0.8 °C10.3 °C97.28 mm
December-5.4 °C4.6 °C118.11 mm
Annual3.5 °C15 °C1256.79 mm

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 : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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