Dorchester Rainfall Forecast

Today 11 Sep
No Rain
Sat 12 Sep
No Rain
Sun 13 Sep
75%
Mon 14 Sep
10%
Tue 15 Sep
5%
Wed 16 Sep
35%
Thu 17 Sep
35%

Dorchester Rainfall Statistics

September Rainfall

Boston, Logan International Airport (5 miles)

Total Rainfall 2026
18.4in
Daily Average 2026
0.1in
Wettest Day 7 July, 2026
1.6in
Wet Days 2026
89/254 (35%)
Total Rainfall August
1in
Daily Average August
0.03in
Wettest Day 3 August, 2026
0.5in
Wet Days August
5/31 (16%)
Total Rainfall September
0.8in
Daily Average September
0.1in
Wettest Day 3 September, 2026
0.5in
Wet Days September
3/11 (27%)

Climate (2021–2025)

Boston, Logan International Airport (5 miles)

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Annual Average 2021–2025
43.1in
Monthly Average 2021–2026
3.3in
Daily Average 2021–2026
0.1in
Wettest Day 22 May, 2025
3.1in

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