Rockland Maine Climate Data

Monthly Average Climate Data for Rockland Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.1 °F31.7 °F4.55 in.
February18.4 °F33.5 °F3.79 in.
March25.0 °F40.0 °F4.79 in.
April34.6 °F50.3 °F4.74 in.
May43.6 °F60.1 °F3.77 in.
June52.2 °F68.9 °F4.02 in.
July58.1 °F74.9 °F3.24 in.
August57.7 °F74.7 °F2.99 in.
September52.2 °F68.2 °F4.48 in.
October42.9 °F57.1 °F5.28 in.
November34.4 °F47.5 °F4.92 in.
December24.3 °F37.6 °F4.99 in.
Annual38.4 °F53.7 °F51.56 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year