Grahamtown Maryland Climate Data

Monthly Average Climate Data for Grahamtown Maryland

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.8 °C1.6 °C76.96 mm
February-6.2 °C3.5 °C75.18 mm
March-2.4 °C8.3 °C101.6 mm
April3.2 °C16.3 °C102.87 mm
May8.9 °C21.1 °C119.63 mm
June13.4 °C25.3 °C116.59 mm
July15.7 °C27.6 °C94.49 mm
August14.8 °C26.8 °C83.57 mm
September11.1 °C23.3 °C97.03 mm
October5.2 °C16.9 °C84.84 mm
November-0.1 °C9.8 °C77.72 mm
December-4.1 °C4 °C86.61 mm
Annual4.4 °C15.4 °C1117.09 mm

Climate Data for Grahamtown Maryland

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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