Littleton Massachusetts Climate Data

Monthly Average Climate Data for Littleton Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.3 °F34.7 °F3.62 in.
February17.0 °F37.3 °F3.41 in.
March25.0 °F45.1 °F4.37 in.
April35.6 °F58.3 °F4.23 in.
May46.1 °F69.0 °F3.8 in.
June55.6 °F77.7 °F4.44 in.
July61.3 °F83.6 °F3.7 in.
August59.6 °F82.1 °F3.87 in.
September51.4 °F75.0 °F3.91 in.
October39.7 °F62.5 °F4.84 in.
November30.3 °F51.0 °F3.84 in.
December21.9 °F40.4 °F4.61 in.
Annual38.2 °F59.7 °F48.64 in.

Climate Data for Littleton Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 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