Deerfield Massachusetts Climate Data

Monthly Average Climate Data for Deerfield Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.2 °C0.7 °C90.17 mm
February-9.5 °C2.6 °C80.77 mm
March-4.7 °C7.2 °C95.5 mm
April1.2 °C14.5 °C98.3 mm
May7.3 °C20.9 °C101.09 mm
June12.7 °C25.8 °C123.44 mm
July15.5 °C28.7 °C107.19 mm
August14.5 °C27.7 °C115.06 mm
September10.1 °C23.6 °C121.41 mm
October3.7 °C16.3 °C124.97 mm
November-1.6 °C9.6 °C93.98 mm
December-6.3 °C3.7 °C113.79 mm
Annual2.7 °C15.1 °C1265.67 mm

Climate Data for Deerfield Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 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 ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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