Dorchester Rainfall Forecast

Today 17 May
15%
Sun 18 May
15%
Mon 19 May
20%
Tue 20 May
10%
Wed 21 May
45%
Thu 22 May
25%
Fri 23 May
10%

Dorchester Rainfall Statistics

May Rainfall

Summerville Airport (8.1 miles)

Total Rainfall 2025
9in
Daily Average 2025
0.1in
Wettest Day 10 March, 2025
0.9in
Wet Days 2025
33/137 (24%)
Total Rainfall April
1.4in
Daily Average April
0.05in
Wettest Day 7 April, 2025
0.6in
Wet Days April
5/30 (17%)
Total Rainfall May
2.2in
Daily Average May
0.2in
Wettest Day 9 May, 2025
0.7in
Wet Days May
7/17 (41%)

Climate (2010–Present)

Summerville Airport (8.1 miles)

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Annual Average 2020–2024
39.4in
Monthly Average 2020–2025
3.2in
Daily Average 2020–2025
0.1in
Wettest Day 30 September, 2022
4.6in

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