Falmouth Maine Climate Data

Monthly Average Climate Data for Falmouth Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.0 °F32.0 °F3.52 in.
February18.0 °F34.5 °F3.52 in.
March26.3 °F41.5 °F4.04 in.
April36.5 °F52.7 °F4.44 in.
May46.4 °F63.1 °F3.62 in.
June56.0 °F72.8 °F4.33 in.
July61.8 °F78.5 °F3.47 in.
August61.3 °F78.1 °F3.36 in.
September53.7 °F70.9 °F3.98 in.
October42.8 °F59.0 °F5.12 in.
November33.0 °F48.1 °F4.26 in.
December23.3 °F38.0 °F4.66 in.
Annual39.6 °F55.8 °F48.32 in.

Climate Data for Falmouth Maine

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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