Grand Isle Vermont Climate Data

Monthly Average Climate Data for Grand Isle Vermont

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.3 °F27.3 °F2.22 in.
February11.8 °F30.1 °F1.84 in.
March21.5 °F39.2 °F2.25 in.
April34.4 °F53.5 °F2.93 in.
May46.9 °F67.3 °F3.36 in.
June56.7 °F75.3 °F4.25 in.
July62.0 °F80.1 °F3.84 in.
August60.0 °F79.4 °F3.68 in.
September52.4 °F71.6 °F3.28 in.
October41.2 °F58.1 °F3.72 in.
November30.9 °F45.6 °F2.73 in.
December19.4 °F34.0 °F2.62 in.
Annual37.3 °F55.1 °F36.72 in.

Climate Data for Grand Isle Vermont

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year