Ashburn Virginia Climate Data

Monthly Average Climate Data for Ashburn Virginia

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.2 °C6 °C77.22 mm
February-3.3 °C7.8 °C66.29 mm
March0.5 °C12.6 °C95 mm
April6.1 °C19.2 °C85.34 mm
May11.5 °C23.7 °C114.55 mm
June16.6 °C28.5 °C111 mm
July19.3 °C31.1 °C106.68 mm
August18.2 °C30.2 °C90.17 mm
September14.4 °C26.4 °C110.74 mm
October7.4 °C20 °C99.31 mm
November1.6 °C13.8 °C83.06 mm
December-1.9 °C8.2 °C92.46 mm
Annual7.2 °C19 °C1131.82 mm

Climate Data for Ashburn Virginia

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation