Princeton Massachusetts Climate Data

Monthly Average Climate Data for Princeton Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.5 °F31.1 °F4.14 in.
February15.8 °F34.0 °F3.73 in.
March23.7 °F41.6 °F4.76 in.
April34.8 °F54.7 °F4.48 in.
May45.0 °F65.9 °F4.07 in.
June54.6 °F74.3 °F4.58 in.
July60.2 °F79.6 °F4.09 in.
August58.5 °F78.1 °F4.31 in.
September51.7 °F70.7 °F4.61 in.
October40.3 °F58.3 °F5.42 in.
November30.4 °F47.0 °F4.31 in.
December21.4 °F36.6 °F4.88 in.
Annual37.6 °F56 °F53.38 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year