Stow Massachusetts Climate Data

Monthly Average Climate Data for Stow Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.9 °C1.6 °C93.73 mm
February-8 °C3.2 °C86.87 mm
March-3.6 °C7.4 °C113.03 mm
April2.2 °C14.7 °C110.74 mm
May8 °C20.5 °C95.25 mm
June13.2 °C25.2 °C112.01 mm
July16.4 °C28.6 °C94.49 mm
August15.6 °C27.7 °C98.04 mm
September11 °C23.8 °C99.06 mm
October4.7 °C17.1 °C123.95 mm
November-0.6 °C10.7 °C96.77 mm
December-5.3 °C4.8 °C119.63 mm
Annual3.7 °C15.4 °C1243.57 mm

Climate Data for Stow Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year