Des Moines River Near Swan, IA

USGS Site No: 05487520 • Des Moines River • Marion County, IA

Des Moines River Near Swan, IA on the Des Moines River is currently at 9,970 cfs (Very High — 95th percentile for this date) . Gage height: 47.09 ft.

Reading from

9,970
CFS Discharge
47.09
Gage Height (ft)
Very High
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 413
25th Low threshold 445
50th (Median) Normal (median) 4,670
75th High threshold 7,600
95th Very High threshold 0

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

27k 13k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 10,500 —
May 27, 2026 9,580 —
May 26, 2026 9,100 —
May 25, 2026 9,570 —
May 24, 2026 10,000 —
May 23, 2026 10,200 —
May 22, 2026 11,100 —
May 21, 2026 12,800 —
May 20, 2026 16,200 —
May 19, 2026 14,900 —
May 18, 2026 7,280 —
May 17, 2026 6,890 —
May 16, 2026 6,360 —
May 15, 2026 6,300 —
Apr 20, 2026 15,400 —
Apr 19, 2026 17,500 —
Apr 18, 2026 19,200 —
Apr 17, 2026 20,400 —
Apr 16, 2026 22,000 —
Apr 15, 2026 20,400 —
Apr 14, 2026 18,600 —
Apr 13, 2026 20,000 —
Apr 12, 2026 22,200 —
Apr 11, 2026 24,900 —
Apr 10, 2026 23,700 —
Apr 9, 2026 21,700 —
Apr 8, 2026 23,000 —
Apr 7, 2026 23,500 —
Apr 6, 2026 22,900 —
Apr 5, 2026 22,000 —

Station Information

USGS Site No
05487520
State
IA
County
Marion County
Coordinates
41.4894, -93.2782
Drainage Area
11,700 mi²
Datum (ft)
699.0
HUC Code
07100008
View on USGS NWIS →

Recent Extremes

Max discharge
42,700 cfs
Jul 21, 2025
Min discharge
1,620 cfs
Feb 5, 2026

Computed from the local daily-values archive.

Nearby Gauges