Commonwealth Rainfall Forecast

Today 17 May
10%
Mon 18 May
No Rain
Tue 19 May
20%
Wed 20 May
60%
Thu 21 May
45%
Fri 22 May
5%
Sat 23 May
20%

Commonwealth Rainfall Statistics

May Rainfall

Boston, Logan International Airport (7.5 miles)

Total Rainfall 2026
9.2in
Daily Average 2026
0.1in
Wettest Day 16 March, 2026
1in
Wet Days 2026
56/137 (41%)
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
0.8in
Daily Average May
0.1in
Wettest Day 9 May, 2026
0.4in
Wet Days May
5/17 (29%)

Climate (2010–Present)

Boston, Logan International Airport (7.5 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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