Rockland Massachusetts Climate Data

Monthly Average Climate Data for Rockland Massachusetts

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.6 °F37.3 °F4.28 in.
February20.8 °F39.5 °F3.79 in.
March28.0 °F46.5 °F5.35 in.
April37.8 °F58.0 °F4.63 in.
May47.5 °F68.3 °F3.57 in.
June56.9 °F77.4 °F3.78 in.
July63.1 °F83.2 °F3.39 in.
August61.5 °F81.9 °F3.62 in.
September54.4 °F74.7 °F3.76 in.
October43.1 °F63.1 °F5.08 in.
November33.8 °F52.5 °F4.46 in.
December25.5 °F42.8 °F5.09 in.
Annual41 °F60.4 °F50.8 in.

Climate Data for Rockland Massachusetts

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation