Groton Vermont Climate Data

Monthly Average Climate Data for Groton Vermont

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.1 °F26.5 °F2.72 in.
February6.8 °F30.1 °F2.31 in.
March16.7 °F39.2 °F2.78 in.
April29.7 °F52.8 °F3.31 in.
May41.7 °F65.9 °F3.98 in.
June50.8 °F74.3 °F4.01 in.
July56.1 °F79.5 °F4.28 in.
August53.9 °F78.0 °F4.2 in.
September46.5 °F70.6 °F3.75 in.
October35.5 °F56.9 °F4.35 in.
November25.8 °F44.1 °F3.05 in.
December14.8 °F32.4 °F3.37 in.
Annual32 °F54.2 °F42.11 in.

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 : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year