Winchester Massachusetts Climate Data

Monthly Average Climate Data for Winchester Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.9 °F36.4 °F4.05 in.
February20.5 °F39.0 °F3.71 in.
March27.8 °F45.8 °F4.9 in.
April38.0 °F57.8 °F4.37 in.
May48.0 °F68.0 °F3.73 in.
June57.5 °F77.1 °F4.28 in.
July63.4 °F82.9 °F3.86 in.
August62.0 °F81.4 °F3.79 in.
September54.5 °F74.3 °F3.93 in.
October43.1 °F62.6 °F4.93 in.
November33.7 °F52.2 °F4.13 in.
December25.3 °F41.9 °F4.92 in.
Annual41.1 °F60 °F50.6 in.

Climate Data for Winchester Massachusetts

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation