How high is the Perry Creek Near Millnerville, IA right now?

The Perry Creek Near Millnerville, IA is currently flowing at 3 cubic feet per second with a gage height of 1.34 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Perry Creek Near Millnerville, IA normal for this time of year?

Current flow is classified as low for June 11. Today's discharge is at the 18th percentile compared to the long-term historical record at this gauge.

Is the Perry Creek Near Millnerville, IA at flood stage?

No — the gage height is 6.66 feet below the NWS flood-stage threshold of 8.0 feet.

What is the historical median flow for the Perry Creek Near Millnerville, IA on June 11?

The long-term median discharge for this date is 11 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 0 to unavailable cfs.

Where is the Perry Creek Near Millnerville, IA stream gauge located?

The Perry Creek Near Millnerville, IA stream gauge is operated by the USGS in Plymouth County, IA on the Perry Creek. USGS site number 06599900 (coordinates 42.6933, -96.3703).

Perry Creek Near Millnerville, IA

USGS Site No: 06599900 • Perry Creek • Plymouth County, IA

Perry Creek Near Millnerville, IA on the Perry Creek is currently at 3 cfs (Low — 18th percentile for this date) . Gage height: 1.34 ft.

Reading from 1 week ago

Downstream on Perry Creek ↓

Perry Creek at 38th Street at Sioux City, IA

CFS Discharge

1.34

Gage Height (ft)

Low

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	0
25th	Low threshold	6	Today: 3 cfs
50th (Median)	Normal (median)	11
75th	High threshold	14
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.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	—	1.35
May 27, 2026	—	1.38
May 26, 2026	—	1.42
May 25, 2026	—	1.46
May 24, 2026	—	1.51
May 23, 2026	—	1.61
May 22, 2026	—	1.61
May 21, 2026	—	1.36
May 20, 2026	—	1.40
May 19, 2026	—	1.47
May 18, 2026	—	1.73
May 17, 2026	—	1.95
May 16, 2026	—	0.98
May 15, 2026	—	0.98
Apr 20, 2026	—	1.01
Apr 19, 2026	—	1.01
Apr 18, 2026	—	1.01
Apr 17, 2026	—	1.02
Apr 16, 2026	—	1.03
Apr 15, 2026	—	1.04
Apr 14, 2026	—	1.03
Apr 13, 2026	—	1.04
Apr 12, 2026	—	1.06
Apr 11, 2026	—	1.06
Apr 10, 2026	—	1.04
Apr 9, 2026	—	1.05
Apr 8, 2026	—	1.07
Apr 7, 2026	—	1.07
Apr 6, 2026	—	1.08
Apr 5, 2026	—	1.10

Station Information

USGS Site No: 06599900
State: IA
County: Plymouth County
Coordinates: 42.6933, -96.3703
Drainage Area: 15 mi²
Datum (ft): 1,284.6
HUC Code: 10230001

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 6.0 ft
Flood Stage: 8.0 ft
Moderate Flood: 10.0 ft
Major Flood: 12.0 ft

Currently 6.66 ft below flood stage.

Nearby Gauges

Floyd River at James, IA
8.6 mi · 861 cfs

High
Big Sioux River Near Jefferson, SD
8.7 mi · 1,830 cfs

Normal
Perry Creek at 38th Street at Sioux City, IA
11.1 mi · 24 cfs

Normal
Big Sioux River at Sioux City, IA
12.9 mi · 0 cfs

Unknown
Big Sioux River at Akron, IA
13.9 mi · 1,430 cfs

Normal