Potomac River - Bullock Island Rainfall Forecast

Today 20 Sep
70%
Mon 21 Sep
40%
Tue 22 Sep
85%
Wed 23 Sep
60%
Thu 24 Sep
50%
Fri 25 Sep
30%
Sat 26 Sep
15%

Potomac River - Bullock Island Rainfall Statistics

September Rainfall

St Marys County Airport (13.7 miles)

Total Rainfall 2026
12.5in
Daily Average 2026
0.05in
Wettest Day 22 July, 2026
1.9in
Wet Days 2026
58/263 (22%)
Total Rainfall August
1.6in
Daily Average August
0.1in
Wettest Day 10 August, 2026
0.7in
Wet Days August
11/31 (35%)
Total Rainfall September
1.4in
Daily Average September
0.1in
Wettest Day 4 September, 2026
1.4in
Wet Days September
2/20 (10%)

Climate (2021–2025)

St Marys County Airport (13.7 miles)

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Annual Average 2021–2025
41in
Monthly Average 2021–2026
3.3in
Daily Average 2021–2026
0.1in
Wettest Day 23 March, 2024
12.2in

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