Greenbelt Maryland Climate Data

Monthly Average Climate Data for Greenbelt Maryland

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.6 °C6.3 °C79.25 mm
February-2.7 °C8 °C69.85 mm
March0.9 °C12.6 °C101.35 mm
April6.4 °C19.1 °C88.14 mm
May11.9 °C23.8 °C114.3 mm
June17.1 °C28.6 °C118.11 mm
July19.7 °C31.1 °C114.3 mm
August18.7 °C30.1 °C95.25 mm
September15 °C26.4 °C115.32 mm
October8.2 °C20.1 °C98.55 mm
November2.5 °C13.9 °C79.76 mm
December-1.2 °C8.6 °C94.49 mm
Annual7.7 °C19.1 °C1168.67 mm

Climate Data for Greenbelt 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 ClassificationCfa - Humid Subtropical Climate