Chilmark Massachusetts Climate Data

Monthly Average Climate Data for Chilmark Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.9 °C4.1 °C105.92 mm
February-2.7 °C4.3 °C92.96 mm
March0 °C6.6 °C129.54 mm
April4.7 °C11.6 °C110.74 mm
May9.5 °C16.6 °C88.39 mm
June14.6 °C21.3 °C88.9 mm
July18.5 °C25 °C71.63 mm
August18.6 °C24.9 °C88.14 mm
September15.6 °C22 °C96.77 mm
October10.4 °C16.8 °C118.87 mm
November5.1 °C11.8 °C105.16 mm
December0.4 °C7.3 °C124.71 mm
Annual7.7 °C14.4 °C1221.73 mm

Climate Data for Chilmark Massachusetts

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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