Henniker New Hampshire Climate Data

Monthly Average Climate Data for Henniker New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.5 °C-0.5 °C83.57 mm
February-10.7 °C1.2 °C82.04 mm
March-5.9 °C5.8 °C94.23 mm
April0.1 °C13.2 °C98.81 mm
May6.4 °C19.7 °C95 mm
June11.7 °C24.7 °C113.79 mm
July14.7 °C27.7 °C105.16 mm
August13.5 °C26.8 °C99.06 mm
September9.3 °C22.6 °C103.12 mm
October2.8 °C15.2 °C130.05 mm
November-2.2 °C8.6 °C101.6 mm
December-7.4 °C2.6 °C115.06 mm
Annual1.7 °C14 °C1221.49 mm

Climate Data for Henniker New Hampshire

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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