Winchester New Hampshire Climate Data

Monthly Average Climate Data for Winchester New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.9 °F31.8 °F3.48 in.
February13.2 °F35.1 °F3.04 in.
March22.0 °F43.4 °F3.56 in.
April32.9 °F56.8 °F3.61 in.
May44.1 °F68.8 °F3.73 in.
June53.5 °F77.4 °F4.42 in.
July58.7 °F82.6 °F4.27 in.
August56.9 °F81.0 °F4.26 in.
September48.9 °F73.5 °F4.12 in.
October37.6 °F60.4 °F4.93 in.
November28.3 °F48.0 °F3.61 in.
December19.1 °F37.1 °F4.13 in.
Annual35.6 °F58 °F47.16 in.

Climate Data for Winchester 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 ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year