Chantilly Virginia Climate Data

Monthly Average Climate Data for Chantilly Virginia

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4 °C6.2 °C75.69 mm
February-3.2 °C7.9 °C66.29 mm
March0.7 °C12.7 °C94.23 mm
April6.2 °C19.2 °C83.31 mm
May11.6 °C23.7 °C113.28 mm
June16.7 °C28.4 °C112.01 mm
July19.3 °C30.9 °C109.22 mm
August18.3 °C30 °C90.17 mm
September14.6 °C26.3 °C106.43 mm
October7.7 °C19.9 °C95.25 mm
November1.9 °C13.8 °C80.52 mm
December-1.7 °C8.3 °C90.17 mm
Annual7.3 °C18.9 °C1116.57 mm

Climate Data for Chantilly Virginia

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 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 ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate