Exeter New Hampshire Climate Data

Monthly Average Climate Data for Exeter New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.3 °C1.1 °C88.9 mm
February-8.4 °C2.6 °C86.36 mm
March-4.2 °C6.7 °C111.76 mm
April1.4 °C13.6 °C109.98 mm
May7 °C19.3 °C99.06 mm
June12.3 °C24.5 °C107.95 mm
July15.6 °C27.7 °C93.98 mm
August14.7 °C27.1 °C89.41 mm
September10.3 °C23 °C100.08 mm
October3.9 °C16.2 °C126.24 mm
November-0.9 °C10 °C99.06 mm
December-5.7 °C3.9 °C115.82 mm
Annual3.1 °C14.6 °C1228.6 mm

Climate Data for Exeter 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 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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