Great Diamond Island Rainfall Forecast

Today 20 May
10%
Wed 21 May
5%
Thu 22 May
60%
Fri 23 May
85%
Sat 24 May
50%
Sun 25 May
25%
Mon 26 May
15%

Great Diamond Island Rainfall Statistics

May Rainfall

Portland, Portland International Jetport (5 miles)

Total Rainfall 2025
18.8in
Daily Average 2025
0.1in
Wettest Day 10 May, 2025
2.3in
Wet Days 2025
56/140 (40%)
Total Rainfall April
4.6in
Daily Average April
0.2in
Wettest Day 26 April, 2025
1.5in
Wet Days April
16/30 (53%)
Total Rainfall May
4.6in
Daily Average May
0.3in
Wettest Day 10 May, 2025
2.3in
Wet Days May
11/20 (55%)

Climate (2010–Present)

Portland, Portland International Jetport (5 miles)

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Annual Average 2020–2024
46.9in
Monthly Average 2020–2025
3.9in
Daily Average 2020–2025
0.1in
Wettest Day 14 October, 2022
2.8in

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