Londonderry Vermont Climate Data

Monthly Average Climate Data for Londonderry Vermont

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.2 °F28.7 °F3.64 in.
February9.1 °F31.3 °F3.02 in.
March17.7 °F39.4 °F3.81 in.
April29.7 °F52.2 °F3.78 in.
May41.7 °F64.9 °F3.81 in.
June50.6 °F73.0 °F4.54 in.
July54.9 °F77.9 °F4.24 in.
August53.0 °F76.2 °F4.19 in.
September44.9 °F69.7 °F3.93 in.
October34.6 °F56.4 °F5.1 in.
November25.4 °F44.8 °F3.95 in.
December16.4 °F33.7 °F4.09 in.
Annual32.3 °F54 °F48.1 in.

Climate Data for Londonderry Vermont

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 11 - Jun. 20
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