South Thomaston Maine Climate Data

Monthly Average Climate Data for South Thomaston Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.8 °F31.8 °F4.48 in.
February17.7 °F33.4 °F3.76 in.
March24.7 °F39.8 °F4.76 in.
April34.7 °F50.3 °F4.68 in.
May43.7 °F60.0 °F3.76 in.
June52.2 °F68.7 °F4.01 in.
July58.2 °F74.8 °F3.25 in.
August57.7 °F74.6 °F2.99 in.
September51.6 °F68.2 °F4.42 in.
October42.2 °F57.1 °F5.24 in.
November33.6 °F47.4 °F4.86 in.
December23.8 °F37.7 °F4.96 in.
Annual38.1 °F53.7 °F51.17 in.

Climate Data for South Thomaston Maine

Average First Frost DateOct. 11 - Oct. 20
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