Union Maine Climate Data

Monthly Average Climate Data for Union Maine

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.2 °C-1.2 °C104.39 mm
February-10.2 °C0.4 °C91.44 mm
March-5.1 °C4.7 °C109.47 mm
April0.9 °C11.3 °C117.86 mm
May6.7 °C17.6 °C96.01 mm
June11.8 °C22.3 °C115.06 mm
July15.2 °C25.6 °C83.57 mm
August14.5 °C25.2 °C85.34 mm
September10.6 °C21.2 °C106.17 mm
October4.5 °C14.4 °C145.8 mm
November-0.9 °C8 °C120.9 mm
December-6.7 °C2.2 °C124.21 mm
Annual2.5 °C12.6 °C1300.22 mm

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 : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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