Keene New Hampshire Climate Data

Monthly Average Climate Data for Keene New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.9 °F30.9 °F3.16 in.
February12.0 °F34.2 °F2.74 in.
March21.1 °F42.5 °F3.27 in.
April32.3 °F56.0 °F3.39 in.
May43.4 °F68.0 °F3.77 in.
June53.0 °F76.5 °F4.24 in.
July58.1 °F81.6 °F4.46 in.
August56.3 °F80.1 °F4.2 in.
September48.2 °F72.8 °F4.12 in.
October36.7 °F60.0 °F4.87 in.
November27.6 °F47.2 °F3.45 in.
December18.2 °F36.2 °F3.86 in.
Annual34.8 °F57.2 °F45.53 in.

Climate Data for Keene New Hampshire

Average First Frost DateOct. 1 - Oct. 10
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 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year