Columbia River - Westport Slough Entrance Rainfall Forecast

Today 23 Mar
45%
Tue 24 Mar
100%
Wed 25 Mar
75%
Thu 26 Mar
30%
Fri 27 Mar
5%
Sat 28 Mar
20%
Sun 29 Mar
40%

Columbia River - Westport Slough Entrance Rainfall Statistics

March Rainfall

Southwest Washington Regional Airport (23 miles)

Total Rainfall 2026
12.5in
Daily Average 2026
0.2in
Wettest Day 13 March, 2026
1.6in
Wet Days 2026
48/82 (59%)
Total Rainfall February
3.8in
Daily Average February
0.1in
Wettest Day 8 February, 2026
0.5in
Wet Days February
18/28 (64%)
Total Rainfall March
5.2in
Daily Average March
0.3in
Wettest Day 13 March, 2026
1.6in
Wet Days March
15/23 (65%)

Climate (2010–Present)

Southwest Washington Regional Airport (23 miles)

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Annual Average 2021–2025
39.7in
Monthly Average 2021–2026
3.2in
Daily Average 2021–2026
0.1in
Wettest Day 4 November, 2022
4.2in

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