Casco Maine Climate Data

Monthly Average Climate Data for Casco Maine

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.4 °C-1.6 °C84.33 mm
February-11.7 °C0.1 °C85.85 mm
March-6.2 °C4.8 °C98.3 mm
April0.1 °C12 °C112.01 mm
May6.3 °C18.8 °C96.27 mm
June11.9 °C23.3 °C124.46 mm
July15.1 °C26.6 °C106.43 mm
August14.1 °C25.9 °C96.77 mm
September9.8 °C21.7 °C100.58 mm
October3.3 °C14.3 °C141.48 mm
November-2.2 °C7.6 °C109.73 mm
December-8 °C1.6 °C112.01 mm
Annual1.7 °C12.9 °C1268.22 mm

Climate Data for Casco Maine

Average First Frost DateOct. 1 - Oct. 10
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 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfc - Subarctic With Cool Summers And Year Around Rainfall
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