Sandwich New Hampshire Climate Data

Monthly Average Climate Data for Sandwich New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.6 °F28.6 °F3.72 in.
February9.9 °F31.3 °F3.39 in.
March19.0 °F39.9 °F3.98 in.
April30.6 °F53.4 °F4.35 in.
May41.3 °F66.4 °F4.27 in.
June50.6 °F74.5 °F4.96 in.
July55.5 °F79.4 °F5.07 in.
August53.8 °F78.0 °F4.55 in.
September46.2 °F70.4 °F4.19 in.
October35.8 °F57.0 °F5.75 in.
November27.1 °F44.6 °F4.5 in.
December16.7 °F34.0 °F4.89 in.
Annual32.9 °F54.8 °F53.62 in.

Climate Data for Sandwich New Hampshire

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year