USGS Streamgage 06600000
Perry Creek at 38th Street at Sioux City, IA
Perry Creek at 38th Street at Sioux City, IA is USGS streamgage 06600000 in Iowa, monitoring river discharge in hydrologic subbasin 10230001. It sits on the Perry Creek, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 65 square miles. Discharge records at this site go back to 1939. Typical flow runs near 9.1 cfs in July and 12.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Iowa
- Drainage area
- 65 sq mi
- Gauge elevation
- 1,141 ft
- Subbasin (HUC-8)
- 10230001
- Coordinates
- 42.53522, -96.41044
- USGS site number
- 06600000
- Records begin
- 1939-05-27 (87 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 59 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 0.7 | 4.4 | 15 | |
| February | 1.2 | 8.3 | 54.5 | |
| March | 3.3 | 15 | 108.5 | |
| April | 3 | 12.3 | 47.7 | |
| May | 2.3 | 12.7 | 50.6 | |
| June | 1.3 | 13.1 | 62.7 | |
| July | 0.7 | 9.1 | 40.8 | |
| August | 0.4 | 6.4 | 23.4 | |
| September | 0.4 | 5.1 | 21.4 | |
| October | 0.7 | 6 | 20.5 | |
| November | 1.1 | 5.4 | 21.1 | |
| December | 1 | 4.6 | 17.2 |
All values in cubic feet per second (cfs).
Common questions
- When does Perry Creek at 38th Street at Sioux City, IA normally run highest?
- March, on the long-term record. The median daily flow that month is about 15 cfs, against 4.4 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Perry Creek at 38th Street at Sioux City, IA?
- It depends on the month. In January, half of days historically fall near 4.4 cfs, with the middle 80% of days between 0.7 and 15 cfs. The month-by-month table on this page gives the full range.
- How long has Perry Creek at 38th Street at Sioux City, IA been measured?
- Discharge records at USGS site 06600000 begin in 1939, about 87 years, covering roughly 1,300 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Perry Creek at 38th Street at Sioux City, IA?
- The gauge sits at 42.53522, -96.41044, in Iowa, in hydrologic subbasin 10230001, at an elevation of about 1,141 feet, draining roughly 65 square miles.
- Can I use Perry Creek at 38th Street at Sioux City, IA data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.
Upstream and downstream on the Perry Creek
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Perry Creek in full.
- Perry Creek near Millnerville, IA 15 sq mi
- Perry Creek near Hinton, IA 33 sq mi
- Perry Creek at 38th Street at Sioux City, IA this page