Leominster Massachusetts Climate Data

Monthly Average Climate Data for Leominster Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.5 °C1.2 °C99.57 mm
February-8.6 °C2.7 °C89.15 mm
March-4.1 °C6.9 °C116.59 mm
April1.9 °C14.3 °C108.2 mm
May7.9 °C20.4 °C98.3 mm
June13.2 °C25.3 °C110.24 mm
July16.3 °C28.4 °C99.31 mm
August15.3 °C27.6 °C91.69 mm
September10.8 °C23.6 °C107.19 mm
October4.3 °C16.7 °C133.35 mm
November-1.1 °C10.1 °C102.62 mm
December-5.8 °C4.2 °C116.59 mm
Annual3.4 °C15.1 °C1272.8 mm

Climate Data for Leominster 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 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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