Sammamish Rainfall Forecast

Today 14 Apr
100%
Wed 15 Apr
85%
Thu 16 Apr
10%
Fri 17 Apr
5%
Sat 18 Apr
40%
Sun 19 Apr
60%
Mon 20 Apr
50%

Sammamish Rainfall Statistics

April Rainfall

Renton Municipal Airport (11.8 miles)

Total Rainfall 2026
13.5in
Daily Average 2026
0.1in
Wettest Day 13 March, 2026
1.3in
Wet Days 2026
47/104 (45%)
Total Rainfall March
6.3in
Daily Average March
0.2in
Wettest Day 13 March, 2026
1.3in
Wet Days March
18/31 (58%)
Total Rainfall April
1in
Daily Average April
0.1in
Wettest Day 1 April, 2026
0.9in
Wet Days April
3/14 (21%)

Climate (2010–Present)

Renton Municipal Airport (11.8 miles)

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Annual Average 2021–2025
16.7in
Monthly Average 2021–2026
1.5in
Daily Average 2021–2026
0.1in
Wettest Day 28 October, 2021
1.5in

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