Andover New Hampshire Climate Data

Monthly Average Climate Data for Andover New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.3 °F29.7 °F3.21 in.
February11.3 °F32.8 °F2.98 in.
March20.1 °F41.3 °F3.45 in.
April31.5 °F55.0 °F3.84 in.
May42.7 °F67.5 °F3.88 in.
June51.9 °F76.1 °F4.47 in.
July57.6 °F81.4 °F4.41 in.
August55.4 °F79.7 °F3.99 in.
September47.8 °F72.1 °F3.88 in.
October36.4 °F58.7 °F5.34 in.
November27.5 °F46.2 °F3.91 in.
December17.9 °F35.3 °F4.28 in.
Annual34.2 °F56.3 °F47.64 in.

Climate Data for Andover 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 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year