Winooski Vermont Climate Data

Monthly Average Climate Data for Winooski Vermont

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.4 °F27.9 °F2.33 in.
February11.9 °F30.7 °F1.84 in.
March21.6 °F39.5 °F2.49 in.
April34.6 °F54.2 °F3.21 in.
May46.8 °F67.8 °F3.53 in.
June56.5 °F76.4 °F4.28 in.
July61.6 °F81.0 °F4.45 in.
August59.8 °F79.9 °F4.03 in.
September51.9 °F72.0 °F3.89 in.
October40.7 °F58.3 °F3.99 in.
November30.7 °F45.9 °F2.93 in.
December19.3 °F34.3 °F2.78 in.
Annual37.2 °F55.7 °F39.75 in.

Climate Data for Winooski Vermont

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year