Troy New Hampshire Climate Data

Monthly Average Climate Data for Troy New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.8 °C-0.6 °C97.28 mm
February-9.9 °C1.1 °C83.31 mm
March-5.7 °C5.3 °C96.52 mm
April0.6 °C12.8 °C96.52 mm
May6.3 °C19.6 °C99.06 mm
June11.7 °C24.2 °C119.13 mm
July14.6 °C26.9 °C110.74 mm
August13.2 °C25.9 °C110.24 mm
September9 °C21.6 °C111.25 mm
October3.5 °C14.8 °C130.81 mm
November-1.8 °C8.3 °C97.03 mm
December-6.9 °C2.4 °C109.22 mm
Annual2 °C13.5 °C1261.11 mm

Climate Data for Troy New Hampshire

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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