Potomac River - Fort Washington Light Rainfall Forecast

Today 20 Sep
55%
Mon 21 Sep
60%
Tue 22 Sep
75%
Wed 23 Sep
60%
Thu 24 Sep
50%
Fri 25 Sep
20%
Sat 26 Sep
10%

Potomac River - Fort Washington Light Rainfall Statistics

September Rainfall

Fort Belvoir (7.5 miles)

Total Rainfall 2026
22.9in
Daily Average 2026
0.1in
Wettest Day 2 August, 2026
2in
Wet Days 2026
78/263 (30%)
Total Rainfall August
5.6in
Daily Average August
0.2in
Wettest Day 2 August, 2026
2in
Wet Days August
10/31 (32%)
Total Rainfall September
1.4in
Daily Average September
0.1in
Wettest Day 4 September, 2026
0.4in
Wet Days September
4/20 (20%)

Climate (2021–2025)

Fort Belvoir (7.5 miles)

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Annual Average 2021–2025
32.3in
Monthly Average 2021–2026
2.6in
Daily Average 2021–2026
0.1in
Wettest Day 22 December, 2021
3.2in

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