Harbor Island Rainfall Forecast

Today 11 May
No Rain
Tue 12 May
25%
Wed 13 May
40%
Thu 14 May
15%
Fri 15 May
35%
Sat 16 May
35%
Sun 17 May
5%

Harbor Island Rainfall Statistics

May Rainfall

Boeing Field - King County International Airport (2.5 miles)

Total Rainfall 2026
9.1in
Daily Average 2026
0.1in
Wettest Day 24 March, 2026
0.8in
Wet Days 2026
47/131 (36%)
Total Rainfall April
1.2in
Daily Average April
0.04in
Wettest Day 1 April, 2026
0.4in
Wet Days April
6/30 (20%)
Total Rainfall May
0in
Daily Average May
0in
Wettest Day 1 May, 2026
0in
Wet Days May
–

Climate (2010–Present)

Boeing Field - King County International Airport (2.5 miles)

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Annual Average 2021–2025
23.1in
Monthly Average 2021–2026
1.9in
Daily Average 2021–2026
0.1in
Wettest Day 28 February, 2022
1.4in

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