Ayer Massachusetts Climate Data

Monthly Average Climate Data for Ayer Massachusetts

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.4 °C1.3 °C90.17 mm
February-8.4 °C2.9 °C85.6 mm
March-3.9 °C7.3 °C108.71 mm
April1.9 °C14.7 °C101.6 mm
May7.9 °C20.7 °C95 mm
June13.2 °C25.6 °C114.55 mm
July16.3 °C28.8 °C94.49 mm
August15.4 °C27.9 °C100.08 mm
September10.9 °C23.9 °C101.6 mm
October4.3 °C16.9 °C122.94 mm
November-0.9 °C10.4 °C98.04 mm
December-5.7 °C4.5 °C113.79 mm
Annual3.5 °C15.4 °C1226.57 mm

Climate Data for Ayer Massachusetts

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
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 ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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