Herndon Rainfall Forecast
- 25%
- 15%
- 40%
- 65%
- 65%
- 30%
- 25%
Herndon Rainfall Statistics
August Rainfall
Washington/Dulles International Airport, DC (4.3 miles)
Total Rainfall August
2inDaily Average August
0.1inWettest Day 10 August, 2022
0.9inWet Days August
9/18 (50%)
Climate (2010–Present)
Washington/Dulles International Airport, DC (4.3 miles)
Annual Average 2010–Present
63.9inMonthly Average 2010–Present
5.8inDaily Average 2010–Present
0.2inWettest Day 20 August, 2019
7.3in