Derwood Maryland Climate Data

Monthly Average Climate Data for Derwood Maryland

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.7 °C5.5 °C79.25 mm
February-2.8 °C7.3 °C70.1 mm
March0.9 °C11.9 °C100.58 mm
April6.4 °C18.6 °C86.61 mm
May11.9 °C23.3 °C113.03 mm
June16.7 °C27.9 °C114.05 mm
July19.3 °C30.3 °C108.46 mm
August18.3 °C29.2 °C90.42 mm
September14.7 °C25.5 °C111.76 mm
October8.1 °C19.2 °C98.3 mm
November2.7 °C13.2 °C83.57 mm
December-1.3 °C7.7 °C92.46 mm
Annual7.6 °C18.3 °C1148.59 mm

Climate Data for Derwood 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation