Walla Walla Rainfall Forecast

Today 18 Sep
No Rain
Fri 19 Sep
No Rain
Sat 20 Sep
5%
Sun 21 Sep
25%
Mon 22 Sep
No Rain
Tue 23 Sep
5%
Wed 24 Sep
25%

Walla Walla Rainfall Statistics

September Rainfall

Walla Walla Regional Airport (3.1 miles)

Total Rainfall 2025
7.9in
Daily Average 2025
0.03in
Wettest Day 23 February, 2025
0.9in
Wet Days 2025
58/261 (22%)
Total Rainfall August
0.1in
Daily Average August
0in
Wettest Day 16 August, 2025
0.1in
Wet Days August
3/31 (10%)
Total Rainfall September
0.3in
Daily Average September
0.02in
Wettest Day 14 September, 2025
0.2in
Wet Days September
3/18 (17%)

Climate (2010–Present)

Walla Walla Regional Airport (3.1 miles)

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Annual Average 2020–2024
15.7in
Monthly Average 2020–2025
1.2in
Daily Average 2020–2025
0.04in
Wettest Day 5 May, 2024
1.3in

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