Grasonville Maryland Climate Data

Monthly Average Climate Data for Grasonville Maryland

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-1.9 °C6.3 °C82.04 mm
February-1.3 °C7.6 °C70.36 mm
March2.5 °C11.8 °C103.63 mm
April8.1 °C18.3 °C87.12 mm
May13.5 °C23.2 °C103.38 mm
June18.8 °C28.1 °C108.46 mm
July21.7 °C30.6 °C109.73 mm
August20.7 °C29.6 °C107.44 mm
September17.2 °C26.1 °C107.95 mm
October10.7 °C19.9 °C97.79 mm
November5 °C13.7 °C77.47 mm
December0.7 °C8.6 °C93.98 mm
Annual9.6 °C18.7 °C1149.35 mm

Climate Data for Grasonville Maryland

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8a : -12.2°C to -9.4°C
Plant Hardiness Zone - 2012Zone 7b : -15°C to -12.2°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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