Northborough Massachusetts Climate Data

Monthly Average Climate Data for Northborough Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.8 °F34.9 °F3.77 in.
February17.3 °F37.6 °F3.31 in.
March25.3 °F45.2 °F4.47 in.
April35.8 °F58.0 °F4.26 in.
May46.5 °F68.7 °F3.57 in.
June55.9 °F77.2 °F4.23 in.
July61.6 °F82.9 °F3.86 in.
August60.1 °F81.4 °F4.24 in.
September51.7 °F74.6 °F3.98 in.
October40.3 °F62.5 °F4.9 in.
November30.8 °F51.2 °F3.85 in.
December22.4 °F40.7 °F4.6 in.
Annual38.6 °F59.6 °F49.04 in.

Climate Data for Northborough 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 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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