Royalton Vermont Climate Data

Monthly Average Climate Data for Royalton Vermont

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.5 °F28.5 °F2.98 in.
February8.5 °F31.8 °F2.59 in.
March17.9 °F40.4 °F3.22 in.
April30.2 °F54.5 °F3.38 in.
May42.0 °F68.1 °F3.4 in.
June51.0 °F76.4 °F4.44 in.
July56.4 °F81.3 °F4.49 in.
August54.6 °F78.9 °F3.93 in.
September47.4 °F72.2 °F3.48 in.
October36.1 °F58.4 °F4.13 in.
November26.5 °F45.5 °F3.18 in.
December16.1 °F33.7 °F3.76 in.
Annual32.9 °F55.8 °F42.98 in.

Climate Data for Royalton 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 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