Derry New Hampshire Climate Data

Monthly Average Climate Data for Derry New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.3 °F33.7 °F3.21 in.
February16.0 °F36.5 °F3.23 in.
March24.0 °F44.4 °F4.04 in.
April34.8 °F57.7 °F3.99 in.
May45.3 °F68.6 °F3.81 in.
June54.9 °F77.3 °F4.26 in.
July60.5 °F82.7 °F3.7 in.
August58.7 °F81.3 °F3.75 in.
September50.9 °F74.0 °F3.95 in.
October39.1 °F61.1 °F4.81 in.
November29.9 °F49.8 °F3.84 in.
December20.9 °F39.1 °F4.28 in.
Annual37.4 °F58.9 °F46.87 in.

Climate Data for Derry New Hampshire

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year