Bolton Massachusetts Climate Data

Monthly Average Climate Data for Bolton Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.9 °C1.1 °C95.25 mm
February-8.2 °C2.6 °C86.11 mm
March-3.7 °C6.8 °C113.54 mm
April2.2 °C13.9 °C108.46 mm
May8.2 °C20.1 °C94.49 mm
June13.5 °C24.8 °C111.51 mm
July16.7 °C27.8 °C97.03 mm
August15.8 °C27 °C105.66 mm
September11.3 °C23.2 °C103.12 mm
October4.9 °C16.4 °C125.48 mm
November-0.4 °C10.1 °C98.55 mm
December-5.2 °C4.3 °C117.86 mm
Annual3.9 °C14.8 °C1257.06 mm

Climate Data for Bolton Massachusetts

Average First Frost DateOct. 1 - Oct. 10
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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