Newton Massachusetts Climate Data

Monthly Average Climate Data for Newton Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.3 °F36.5 °F3.89 in.
February19.9 °F39.0 °F3.49 in.
March27.3 °F46.1 °F4.71 in.
April37.4 °F58.3 °F4.23 in.
May47.3 °F68.8 °F3.7 in.
June56.7 °F77.7 °F4.2 in.
July62.6 °F83.6 °F3.65 in.
August61.1 °F82.0 °F3.8 in.
September53.7 °F75.0 °F3.76 in.
October42.2 °F63.1 °F4.81 in.
November33.0 °F52.3 °F4.03 in.
December24.6 °F42.0 °F4.82 in.
Annual40.3 °F60.4 °F49.09 in.

Climate Data for Newton Massachusetts

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year