Monmouth Maine Climate Data

Monthly Average Climate Data for Monmouth Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.6 °F29.2 °F3.53 in.
February12.3 °F32.1 °F3.15 in.
March22.1 °F40.4 °F3.72 in.
April33.2 °F52.9 °F4.26 in.
May44.0 °F64.8 °F3.58 in.
June53.6 °F73.5 °F4.58 in.
July59.4 °F79.4 °F3.63 in.
August57.9 °F78.5 °F3.55 in.
September50.3 °F71.0 °F3.81 in.
October39.2 °F58.1 °F5.34 in.
November29.3 °F46.0 °F4.28 in.
December18.8 °F35.3 °F4.35 in.
Annual35.9 °F55.1 °F47.78 in.

Climate Data for Monmouth Maine

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year