Lyme New Hampshire Climate Data

Monthly Average Climate Data for Lyme New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.9 °F25.7 °F2.9 in.
February9.2 °F28.5 °F2.46 in.
March18.4 °F37.2 °F3.05 in.
April31.3 °F51.1 °F3.51 in.
May42.2 °F64.1 °F3.75 in.
June51.9 °F71.8 °F4.17 in.
July56.6 °F76.6 °F4.54 in.
August55.0 °F75.2 °F4.09 in.
September47.7 °F68.0 °F3.96 in.
October36.6 °F54.9 °F4.81 in.
November27.0 °F42.3 °F3.37 in.
December15.8 °F31.2 °F3.75 in.
Annual33.3 °F52.2 °F44.36 in.

Climate Data for Lyme 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 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year