Upper Iowa River at Bluffton, IA

USGS Site No: 05387440Upper Iowa River • Winneshiek County, IA

Upper Iowa River at Bluffton, IA on the Upper Iowa River is currently at 280 cfs (Normal — 25th percentile for this date) . Gage height: 3.59 ft.

Reading from

280
CFS Discharge
3.59
Gage Height (ft)
Normal
Flow Condition
Normal
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 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 220
25th Low threshold 279
50th (Median) Normal (median) 453 Today: 280 cfs
75th High threshold 694
95th Very High threshold 5,410

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.

6.8k 3.4k 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 261
May 27, 2026 277
May 26, 2026 283
May 25, 2026 297
May 24, 2026 314
May 23, 2026 328
May 22, 2026 329
May 21, 2026 343
May 20, 2026 348
May 19, 2026 293
May 18, 2026 276
May 17, 2026 256
May 16, 2026 260
May 15, 2026 251
Apr 20, 2026 715
Apr 19, 2026 803
Apr 18, 2026 871
Apr 17, 2026 963
Apr 16, 2026 1,060
Apr 15, 2026 937
Apr 14, 2026 696
Apr 13, 2026 672
Apr 12, 2026 697
Apr 11, 2026 739
Apr 10, 2026 842
Apr 9, 2026 972
Apr 8, 2026 1,130
Apr 7, 2026 1,360
Apr 6, 2026 1,790
Apr 5, 2026 2,120

Station Information

USGS Site No
05387440
State
IA
Coordinates
43.4069, -91.8990
Drainage Area
367 mi²
Datum (ft)
944.7
HUC Code
07060002
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
10.0 ft
Flood Stage
12.0 ft
Moderate Flood
13.0 ft
Major Flood
15.0 ft

Currently 8.41 ft below flood stage.

Recent Extremes

Max discharge
6,170 cfs
Aug 19, 2025
Min discharge
79 cfs
Dec 5, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges