McLean Virginia Climate Data

Monthly Average Climate Data for McLean Virginia

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.8 °C6.4 °C79.5 mm
February-2.1 °C8.3 °C70.36 mm
March1.7 °C12.9 °C100.33 mm
April7.2 °C19.6 °C87.63 mm
May12.6 °C24.1 °C115.32 mm
June17.7 °C28.7 °C113.54 mm
July20.3 °C31.1 °C117.09 mm
August19.4 °C30.1 °C92.2 mm
September15.7 °C26.4 °C113.79 mm
October9.1 °C19.9 °C99.57 mm
November3.3 °C14 °C81.28 mm
December-0.4 °C8.6 °C92.71 mm
Annual8.5 °C19.2 °C1163.32 mm

Climate Data for McLean Virginia

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
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