Henniker New Hampshire Climate Data

Monthly Average Climate Data for Henniker New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.3 °F31.1 °F3.29 in.
February12.8 °F34.2 °F3.23 in.
March21.3 °F42.4 °F3.71 in.
April32.2 °F55.7 °F3.89 in.
May43.5 °F67.5 °F3.74 in.
June53.0 °F76.5 °F4.48 in.
July58.4 °F81.9 °F4.14 in.
August56.3 °F80.2 °F3.9 in.
September48.7 °F72.7 °F4.06 in.
October37.0 °F59.3 °F5.12 in.
November28.1 °F47.5 °F4.0 in.
December18.6 °F36.6 °F4.53 in.
Annual35.1 °F57.1 °F48.09 in.

Climate Data for Henniker New Hampshire

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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