Exeter New Hampshire Climate Data

Monthly Average Climate Data for Exeter New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.3 °F34.0 °F3.5 in.
February16.9 °F36.6 °F3.4 in.
March24.5 °F44.0 °F4.4 in.
April34.6 °F56.4 °F4.33 in.
May44.6 °F66.8 °F3.9 in.
June54.2 °F76.1 °F4.25 in.
July60.0 °F81.9 °F3.7 in.
August58.4 °F80.8 °F3.52 in.
September50.6 °F73.4 °F3.94 in.
October39.0 °F61.2 °F4.97 in.
November30.3 °F50.0 °F3.9 in.
December21.8 °F39.1 °F4.56 in.
Annual37.5 °F58.4 °F48.37 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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