Patapsco River - Fort McHenry Marsh Rainfall Forecast

Today 19 May
60%
Wed 20 May
75%
Thu 21 May
75%
Fri 22 May
75%
Sat 23 May
80%
Sun 24 May
65%
Mon 25 May
50%

Patapsco River - Fort McHenry Marsh Rainfall Statistics

May Rainfall

Baltimore, Inner Harbor (1.9 miles)

Total Rainfall 2026
9.6in
Daily Average 2026
0.1in
Wettest Day 25 January, 2026
1.8in
Wet Days 2026
37/139 (27%)
Total Rainfall April
1.7in
Daily Average April
0.1in
Wettest Day 29 April, 2026
0.5in
Wet Days April
8/30 (27%)
Total Rainfall May
0.8in
Daily Average May
0.05in
Wettest Day 13 May, 2026
0.4in
Wet Days May
5/19 (26%)

Climate (2010–Present)

Baltimore, Inner Harbor (1.9 miles)

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Annual Average 2022–2025
31.8in
Monthly Average 2022–2026
3in
Daily Average 2022–2026
0.1in
Wettest Day 9 January, 2024
3.1in

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