Littleton Massachusetts Climate Data

Monthly Average Climate Data for Littleton Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.3 °C1.5 °C91.95 mm
February-8.3 °C2.9 °C86.61 mm
March-3.9 °C7.3 °C111 mm
April2 °C14.6 °C107.44 mm
May7.8 °C20.6 °C96.52 mm
June13.1 °C25.4 °C112.78 mm
July16.3 °C28.7 °C93.98 mm
August15.3 °C27.8 °C98.3 mm
September10.8 °C23.9 °C99.31 mm
October4.3 °C16.9 °C122.94 mm
November-0.9 °C10.6 °C97.54 mm
December-5.6 °C4.7 °C117.09 mm
Annual3.5 °C15.4 °C1235.46 mm

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 : -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
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