Williamstown Vermont Climate Data

Monthly Average Climate Data for Williamstown Vermont

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.2 °F26.7 °F2.67 in.
February8.3 °F30.0 °F2.25 in.
March17.7 °F38.4 °F2.87 in.
April30.3 °F52.0 °F3.24 in.
May42.0 °F65.7 °F3.37 in.
June51.1 °F74.2 °F4.44 in.
July56.0 °F78.8 °F4.54 in.
August54.1 °F77.2 °F3.88 in.
September46.7 °F70.0 °F3.26 in.
October36.0 °F56.4 °F4.01 in.
November26.3 °F43.7 °F3.02 in.
December15.5 °F32.2 °F3.31 in.
Annual32.6 °F53.8 °F40.86 in.

Climate Data for Williamstown 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 4b : -25°F to -20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com