Aspen Hill Maryland Climate Data

Monthly Average Climate Data for Aspen Hill Maryland

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.6 °C5.8 °C78.99 mm
February-2.8 °C7.6 °C70.1 mm
March0.9 °C12.2 °C101.09 mm
April6.6 °C18.9 °C87.38 mm
May12.1 °C23.6 °C112.27 mm
June16.9 °C28.2 °C114.55 mm
July19.6 °C30.6 °C109.98 mm
August18.7 °C29.5 °C93.22 mm
September14.9 °C25.8 °C111 mm
October8.2 °C19.4 °C97.28 mm
November2.5 °C13.4 °C80.77 mm
December-1.2 °C8.1 °C93.47 mm
Annual7.7 °C18.6 °C1150.1 mm

Climate Data for Aspen Hill Maryland

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate