Potomac River - Four Mile Run Entrance Rainfall Forecast
- 75%
- 90%
- 55%
- 40%
- 45%
- 45%
- 40%
Potomac River - Four Mile Run Entrance Rainfall Statistics
July Rainfall
Washington/Reagan National Airport, DC (0.6 miles)
Total Rainfall July
0.5inDaily Average July
0.1inWettest Day 1 July, 2025
0.4inWet Days July
3/9 (33%)
Climate (2010–Present)
Washington/Reagan National Airport, DC (0.6 miles)
Annual Average 2020–2024
43.5inMonthly Average 2020–2025
3.7inDaily Average 2020–2025
0.1inWettest Day 9 July, 2022
4.1in