Union Maine Climate Data

Monthly Average Climate Data for Union Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.8 °F29.9 °F4.11 in.
February13.7 °F32.7 °F3.6 in.
March22.9 °F40.5 °F4.31 in.
April33.6 °F52.4 °F4.64 in.
May44.0 °F63.6 °F3.78 in.
June53.3 °F72.2 °F4.53 in.
July59.3 °F78.0 °F3.29 in.
August58.1 °F77.4 °F3.36 in.
September51.0 °F70.2 °F4.18 in.
October40.1 °F58.0 °F5.74 in.
November30.4 °F46.4 °F4.76 in.
December19.9 °F35.9 °F4.89 in.
Annual36.5 °F54.8 °F51.19 in.

Climate Data for Union 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 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
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