Tumwater Rainfall Forecast

Today 19 Apr
5%
Mon 20 Apr
20%
Tue 21 Apr
65%
Wed 22 Apr
60%
Thu 23 Apr
5%
Fri 24 Apr
No Rain
Sat 25 Apr
5%

Tumwater Rainfall Statistics

April Rainfall

Olympia, Olympia Airport (1.9 miles)

Total Rainfall 2026
19.9in
Daily Average 2026
0.2in
Wettest Day 11 March, 2026
2.2in
Wet Days 2026
53/109 (49%)
Total Rainfall March
9.1in
Daily Average March
0.3in
Wettest Day 11 March, 2026
2.2in
Wet Days March
19/31 (61%)
Total Rainfall April
1.8in
Daily Average April
0.1in
Wettest Day 14 April, 2026
1.2in
Wet Days April
6/19 (32%)

Climate (2010–Present)

Olympia, Olympia Airport (1.9 miles)

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Annual Average 2021–2025
49.5in
Monthly Average 2021–2026
4in
Daily Average 2021–2026
0.1in
Wettest Day 6 January, 2022
4in

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