Princeton Massachusetts Climate Data

Monthly Average Climate Data for Princeton Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.7 °C-0.5 °C105.16 mm
February-9 °C1.1 °C94.74 mm
March-4.6 °C5.3 °C120.9 mm
April1.6 °C12.6 °C113.79 mm
May7.2 °C18.8 °C103.38 mm
June12.6 °C23.5 °C116.33 mm
July15.7 °C26.4 °C103.89 mm
August14.7 °C25.6 °C109.47 mm
September10.9 °C21.5 °C117.09 mm
October4.6 °C14.6 °C137.67 mm
November-0.9 °C8.3 °C109.47 mm
December-5.9 °C2.6 °C123.95 mm
Annual3.1 °C13.3 °C1355.84 mm

Climate Data for Princeton Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°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