Dalton New Hampshire Climate Data

Monthly Average Climate Data for Dalton New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January5.2 °F25.6 °F2.79 in.
February5.9 °F28.5 °F2.39 in.
March14.8 °F37.4 °F2.45 in.
April27.4 °F50.3 °F3.56 in.
May38.3 °F63.8 °F3.93 in.
June47.5 °F72.0 °F4.52 in.
July52.3 °F76.4 °F4.61 in.
August50.4 °F74.9 °F4.26 in.
September43.4 °F67.9 °F3.61 in.
October33.8 °F54.5 °F4.6 in.
November23.8 °F42.3 °F3.25 in.
December12.9 °F31.3 °F3.71 in.
Annual29.6 °F52.1 °F43.68 in.

Climate Data for Dalton 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 4a : -30°F to -25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com