Sullivan Maine Climate Data

Monthly Average Climate Data for Sullivan Maine

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.8 °C-1.3 °C108.97 mm
February-9.2 °C0.1 °C91.95 mm
March-5.4 °C4.2 °C112.78 mm
April0.2 °C10.8 °C109.73 mm
May5.8 °C16.9 °C104.14 mm
June10.7 °C21.9 °C101.35 mm
July14.2 °C25.2 °C82.3 mm
August13.7 °C24.9 °C74.93 mm
September9.7 °C20.9 °C99.82 mm
October4.6 °C14.2 °C138.68 mm
November-0.2 °C7.8 °C130.05 mm
December-5.9 °C2.1 °C132.08 mm
Annual2.4 °C12.3 °C1286.78 mm

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