Ottumwa Rainfall Forecast

Today 14 Sep
20%
Mon 15 Sep
25%
Tue 16 Sep
25%
Wed 17 Sep
30%
Thu 18 Sep
55%
Fri 19 Sep
35%
Sat 20 Sep
20%

Ottumwa Rainfall Statistics

September Rainfall

Ottumwa Regional Airport (5.6 miles)

Total Rainfall 2025
16.7in
Daily Average 2025
0.1in
Wettest Day 24 June, 2025
1.6in
Wet Days 2025
54/257 (21%)
Total Rainfall August
2.2in
Daily Average August
0.1in
Wettest Day 11 August, 2025
1.2in
Wet Days August
7/31 (23%)
Total Rainfall September
0.2in
Daily Average September
0.02in
Wettest Day 3 September, 2025
0.2in
Wet Days September
1/14 (7%)

Climate (2010–Present)

Ottumwa Regional Airport (5.6 miles)

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Annual Average 2020–2024
31in
Monthly Average 2020–2025
2.4in
Daily Average 2020–2025
0.1in
Wettest Day 24 June, 2021
2.9in

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