Rockland Maine Climate Data

Monthly Average Climate Data for Rockland Maine

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.3 °C-0.2 °C115.57 mm
February-7.6 °C0.8 °C96.27 mm
March-3.9 °C4.4 °C121.67 mm
April1.4 °C10.2 °C120.4 mm
May6.4 °C15.6 °C95.76 mm
June11.2 °C20.5 °C102.11 mm
July14.5 °C23.8 °C82.3 mm
August14.3 °C23.7 °C75.95 mm
September11.2 °C20.1 °C113.79 mm
October6.1 °C13.9 °C134.11 mm
November1.3 °C8.6 °C124.97 mm
December-4.3 °C3.1 °C126.75 mm
Annual3.5 °C12 °C1309.65 mm

Climate Data for Rockland Maine

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
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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