Groton Vermont Climate Data

Monthly Average Climate Data for Groton Vermont

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-14.4 °C-3.1 °C69.09 mm
February-14 °C-1.1 °C58.67 mm
March-8.5 °C4 °C70.61 mm
April-1.3 °C11.6 °C84.07 mm
May5.4 °C18.8 °C101.09 mm
June10.4 °C23.5 °C101.85 mm
July13.4 °C26.4 °C108.71 mm
August12.2 °C25.6 °C106.68 mm
September8.1 °C21.4 °C95.25 mm
October1.9 °C13.8 °C110.49 mm
November-3.4 °C6.7 °C77.47 mm
December-9.6 °C0.2 °C85.6 mm
Annual0 °C12.3 °C1069.58 mm

Climate Data for Groton Vermont

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -31.7°C to -28.9°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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