Peterborough New Hampshire Climate Data

Monthly Average Climate Data for Peterborough New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.6 °F31.5 °F3.51 in.
February13.7 °F34.5 °F3.27 in.
March22.0 °F42.5 °F4.07 in.
April33.0 °F55.9 °F3.84 in.
May44.0 °F67.0 °F3.8 in.
June53.1 °F75.9 °F4.44 in.
July58.4 °F80.9 °F4.03 in.
August56.8 °F79.3 °F4.09 in.
September49.1 °F72.0 °F4.16 in.
October37.9 °F59.2 °F5.04 in.
November28.6 °F47.6 °F3.83 in.
December19.2 °F36.9 °F4.25 in.
Annual35.7 °F56.9 °F48.33 in.

Climate Data for Peterborough New Hampshire

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year