Stewartstown New Hampshire Climate Data

Monthly Average Climate Data for Stewartstown New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-16.8 °C-6.3 °C91.19 mm
February-15.9 °C-4.9 °C77.47 mm
March-10.6 °C0.1 °C92.46 mm
April-1.7 °C8.2 °C92.71 mm
May3.9 °C15.7 °C114.55 mm
June9.3 °C20.7 °C132.08 mm
July12.2 °C23 °C122.17 mm
August11.1 °C22.3 °C115.82 mm
September7 °C18.3 °C102.11 mm
October0.9 °C10.7 °C123.95 mm
November-4.9 °C3.3 °C99.06 mm
December-11.8 °C-2.7 °C109.73 mm
Annual-1.4 °C9 °C1273.3 mm

Climate Data for Stewartstown New Hampshire

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4a : -34.4°C to -31.7°C
Plant Hardiness Zone - 2012Zone 3b : -37.2°C to -34.4°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year