Plymouth Maine Climate Data

Monthly Average Climate Data for Plymouth Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.0 °F27.3 °F3.39 in.
February8.5 °F30.7 °F2.84 in.
March19.3 °F39.5 °F3.52 in.
April31.2 °F52.8 °F3.83 in.
May42.1 °F65.5 °F3.54 in.
June51.5 °F74.2 °F4.17 in.
July57.4 °F79.7 °F3.36 in.
August55.6 °F78.5 °F3.51 in.
September47.7 °F70.9 °F3.69 in.
October36.9 °F57.7 °F4.84 in.
November27.5 °F44.9 °F4.14 in.
December15.9 °F33.6 °F4.16 in.
Annual33.4 °F54.6 °F44.99 in.

Climate Data for Plymouth Maine

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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