Deerfield Massachusetts Climate Data

Monthly Average Climate Data for Deerfield Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.6 °F33.2 °F3.55 in.
February14.9 °F36.7 °F3.18 in.
March23.5 °F45.0 °F3.76 in.
April34.1 °F58.1 °F3.87 in.
May45.1 °F69.6 °F3.98 in.
June54.8 °F78.5 °F4.86 in.
July59.9 °F83.6 °F4.22 in.
August58.1 °F81.9 °F4.53 in.
September50.2 °F74.4 °F4.78 in.
October38.7 °F61.3 °F4.92 in.
November29.2 °F49.3 °F3.7 in.
December20.7 °F38.6 °F4.48 in.
Annual36.9 °F59.2 °F49.83 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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