Troy New Hampshire Climate Data

Monthly Average Climate Data for Troy New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.5 °F30.9 °F3.83 in.
February14.2 °F34.0 °F3.28 in.
March21.7 °F41.6 °F3.8 in.
April33.0 °F55.1 °F3.8 in.
May43.4 °F67.2 °F3.9 in.
June53.0 °F75.5 °F4.69 in.
July58.3 °F80.5 °F4.36 in.
August55.7 °F78.7 °F4.34 in.
September48.2 °F70.8 °F4.38 in.
October38.3 °F58.6 °F5.15 in.
November28.8 °F46.9 °F3.82 in.
December19.5 °F36.3 °F4.3 in.
Annual35.6 °F56.3 °F49.65 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year