Littleton New Hampshire Climate Data

Monthly Average Climate Data for Littleton New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January5.7 °F26.9 °F2.2 in.
February6.5 °F30.3 °F1.88 in.
March16.8 °F39.5 °F2.22 in.
April29.8 °F53.0 °F3.01 in.
May41.6 °F66.5 °F3.58 in.
June50.8 °F74.9 °F4.02 in.
July55.8 °F79.7 °F4.26 in.
August53.8 °F78.2 °F3.97 in.
September46.3 °F70.8 °F3.41 in.
October35.4 °F57.0 °F4.02 in.
November25.8 °F43.9 °F2.66 in.
December14.5 °F32.4 °F3.06 in.
Annual31.9 °F54.4 °F38.29 in.

Climate Data for Littleton New Hampshire

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year