Dover New Hampshire Climate Data

Monthly Average Climate Data for Dover New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.8 °C0.7 °C77.72 mm
February-8.8 °C2.2 °C78.99 mm
March-4.5 °C6.4 °C97.28 mm
April1.1 °C13.3 °C105.41 mm
May6.7 °C19.2 °C92.46 mm
June11.8 °C24.4 °C103.38 mm
July15.2 °C27.6 °C97.03 mm
August14.2 °C27.1 °C88.65 mm
September9.9 °C22.9 °C92.71 mm
October3.6 °C16 °C115.32 mm
November-1.2 °C9.6 °C96.01 mm
December-6 °C3.5 °C105.92 mm
Annual2.7 °C14.4 °C1150.88 mm

Climate Data for Dover New Hampshire

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 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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