Potomac River - Four Mile Run Entrance Rainfall Forecast

Today 14 Jul
85%
Tue 15 Jul
65%
Wed 16 Jul
65%
Thu 17 Jul
45%
Fri 18 Jul
45%
Sat 19 Jul
35%
Sun 20 Jul
45%

Potomac River - Four Mile Run Entrance Rainfall Statistics

July Rainfall

Washington/Reagan National Airport, DC (0.6 miles)

Total Rainfall 2025
25.3in
Daily Average 2025
0.1in
Wettest Day 18 June, 2025
1.8in
Wet Days 2025
64/195 (33%)
Total Rainfall June
5.5in
Daily Average June
0.2in
Wettest Day 18 June, 2025
1.8in
Wet Days June
11/30 (37%)
Total Rainfall July
1.7in
Daily Average July
0.1in
Wettest Day 9 July, 2025
1.2in
Wet Days July
6/14 (43%)

Climate (2010–Present)

Washington/Reagan National Airport, DC (0.6 miles)

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Annual Average 2020–2024
43.5in
Monthly Average 2020–2025
3.7in
Daily Average 2020–2025
0.1in
Wettest Day 9 July, 2022
4.1in

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