Ashburnham Massachusetts Climate Data

Monthly Average Climate Data for Ashburnham Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.9 °C-0.9 °C89.15 mm
February-10.1 °C0.8 °C82.3 mm
March-5.9 °C4.9 °C109.22 mm
April0.4 °C12.3 °C102.87 mm
May6.2 °C18.7 °C101.09 mm
June11.4 °C23.3 °C108.2 mm
July14.5 °C26.2 °C101.6 mm
August13.4 °C25.3 °C104.39 mm
September9.5 °C21.3 °C105.41 mm
October3.4 °C14.2 °C128.02 mm
November-1.8 °C7.9 °C96.27 mm
December-6.9 °C2.1 °C113.54 mm
Annual1.9 °C13 °C1242.06 mm

Climate Data for Ashburnham Massachusetts

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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