Charlemont Massachusetts Climate Data

Monthly Average Climate Data for Charlemont Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.7 °F30.3 °F3.61 in.
February12.7 °F33.0 °F3.34 in.
March20.7 °F40.9 °F4.08 in.
April31.9 °F53.2 °F4.05 in.
May42.7 °F64.9 °F4.2 in.
June51.6 °F73.7 °F4.88 in.
July57.0 °F78.8 °F4.44 in.
August55.2 °F77.1 °F4.05 in.
September47.8 °F70.2 °F5.04 in.
October36.9 °F57.3 °F5.14 in.
November27.6 °F45.8 °F3.78 in.
December18.6 °F35.0 °F4.47 in.
Annual34.5 °F55 °F51.08 in.

Climate Data for Charlemont Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year