Boston Harbor Islands State Park Rainfall Forecast

Today 24 May
100%
Mon 25 May
85%
Tue 26 May
5%
Wed 27 May
20%
Thu 28 May
15%
Fri 29 May
30%
Sat 30 May
20%

Boston Harbor Islands State Park Rainfall Statistics

May Rainfall

Boston, Logan International Airport (5.6 miles)

Total Rainfall 2026
9.4in
Daily Average 2026
0.1in
Wettest Day 16 March, 2026
1in
Wet Days 2026
58/144 (40%)
Total Rainfall April
1.5in
Daily Average April
0.05in
Wettest Day 16 April, 2026
0.3in
Wet Days April
13/30 (43%)
Total Rainfall May
1in
Daily Average May
0.05in
Wettest Day 9 May, 2026
0.4in
Wet Days May
7/24 (29%)

Climate (2010–Present)

Boston, Logan International Airport (5.6 miles)

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Annual Average 2021–2025
43.1in
Monthly Average 2021–2026
3.5in
Daily Average 2021–2026
0.1in
Wettest Day 22 May, 2025
3.1in

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