Charles Island Rainfall Forecast

Today 18 May
40%
Mon 19 May
95%
Tue 20 May
70%
Wed 21 May
10%
Thu 22 May
10%
Fri 23 May
20%
Sat 24 May
15%

Charles Island Rainfall Statistics

May Rainfall

Friday Harbor Airport (7.5 miles)

Total Rainfall 2025
6.9in
Daily Average 2025
0.1in
Wettest Day 23 March, 2025
0.6in
Wet Days 2025
54/138 (39%)
Total Rainfall April
0.6in
Daily Average April
0.02in
Wettest Day 6 April, 2025
0.2in
Wet Days April
6/30 (20%)
Total Rainfall May
0.4in
Daily Average May
0.03in
Wettest Day 16 May, 2025
0.2in
Wet Days May
5/18 (28%)

Climate (2010–Present)

Friday Harbor Airport (7.5 miles)

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Annual Average 2020–2024
20.9in
Monthly Average 2020–2025
1.7in
Daily Average 2020–2025
0.1in
Wettest Day 21 December, 2020
2.5in

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