Steffan Reservoir Rainfall Forecast

Today 8 Sep
50%
Wed 9 Sep
5%
Thu 10 Sep
No Rain
Fri 11 Sep
10%
Sat 12 Sep
10%
Sun 13 Sep
40%
Mon 14 Sep
55%

Steffan Reservoir Rainfall Statistics

September Rainfall

Yankton, Chan Gurney Municipal Airport (11.2 miles)

Total Rainfall 2026
9.9in
Daily Average 2026
0.04in
Wettest Day 23 July, 2026
1in
Wet Days 2026
43/251 (17%)
Total Rainfall August
2in
Daily Average August
0.1in
Wettest Day 13 August, 2026
0.8in
Wet Days August
7/31 (23%)
Total Rainfall September
0.5in
Daily Average September
0.1in
Wettest Day 5 September, 2026
0.4in
Wet Days September
2/8 (25%)

Climate (2021–2025)

Yankton, Chan Gurney Municipal Airport (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2021–2025
20.6in
Monthly Average 2021–2026
1.6in
Daily Average 2021–2026
0.1in
Wettest Day 16 August, 2022
3.2in

Get WillyWeather+ to remove ads