Herndon Rainfall Forecast
- 60%
- 50%
- No Rain
- 5%
- 35%
- 5%
- 10%
Herndon Rainfall Statistics
July Rainfall
Fort Campbell U. S. Army Airfield (5.6 miles)
Total Rainfall July
4.5inDaily Average July
0.2inWettest Day 8 July, 2026
0.9inWet Days July
11/21 (52%)
Climate (2021–2025)
Fort Campbell U. S. Army Airfield (5.6 miles)
Annual Average 2021–2025
41.1inMonthly Average 2021–2026
3.3inDaily Average 2021–2026
0.1inWettest Day 26 May, 2024
4.1in