Leominster Massachusetts Climate Data

Monthly Average Climate Data for Leominster Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.9 °F34.1 °F3.92 in.
February16.6 °F36.8 °F3.51 in.
March24.6 °F44.5 °F4.59 in.
April35.4 °F57.7 °F4.26 in.
May46.2 °F68.8 °F3.87 in.
June55.7 °F77.5 °F4.34 in.
July61.4 °F83.2 °F3.91 in.
August59.6 °F81.6 °F3.61 in.
September51.4 °F74.5 °F4.22 in.
October39.7 °F62.0 °F5.25 in.
November30.1 °F50.2 °F4.04 in.
December21.5 °F39.6 °F4.59 in.
Annual38.1 °F59.2 °F50.11 in.

Climate Data for Leominster Massachusetts

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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