Sammamish Rainfall Forecast

Today 12 May
25%
Tue 13 May
30%
Wed 14 May
30%
Thu 15 May
45%
Fri 16 May
50%
Sat 17 May
60%
Sun 18 May
30%

Sammamish Rainfall Statistics

May Rainfall

Renton Municipal Airport (11.8 miles)

Total Rainfall 2025
3.6in
Daily Average 2025
0.03in
Wettest Day 20 April, 2025
0.6in
Wet Days 2025
33/132 (25%)
Total Rainfall April
1.1in
Daily Average April
0.04in
Wettest Day 20 April, 2025
0.6in
Wet Days April
5/30 (17%)
Total Rainfall May
0.01in
Daily Average May
0in
Wettest Day 3 May, 2025
0.01in
Wet Days May
1/12 (8%)

Climate (2010–Present)

Renton Municipal Airport (11.8 miles)

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Annual Average 2020–2024
17.3in
Monthly Average 2020–2025
1.4in
Daily Average 2020–2025
0.05in
Wettest Day 28 October, 2021
1.5in

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