USGS Streamgage 06445980
White Clay Creek near Oglala, SD
White Clay Creek near Oglala, SD is USGS streamgage 06445980 in South Dakota, monitoring river discharge in hydrologic subbasin 10140201. It drains a watershed of about 375 square miles. Discharge records at this site go back to 1965. Typical flow runs near 6.9 cfs in July and 14.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- South Dakota
- Drainage area
- 375 sq mi
- Gauge elevation
- 3,023 ft
- Subbasin (HUC-8)
- 10140201
- Coordinates
- 43.14651, -102.68331
- USGS site number
- 06445980
- Records begin
- 1965-10-01 (61 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 34 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 | 1.5 | 5.1 | 14.4 | |
| February | 2.5 | 8.3 | 24.4 | |
| March | 7.3 | 15.1 | 41.1 | |
| April | 8.8 | 14.8 | 23.4 | |
| May | 8.4 | 13.9 | 25.4 | |
| June | 5.4 | 11.1 | 44.1 | |
| July | 1.4 | 6.9 | 23.5 | |
| August | 0.7 | 5.1 | 14.9 | |
| September | 0.4 | 3.1 | 9.6 | |
| October | 1.4 | 5.5 | 13.5 | |
| November | 2 | 6.8 | 14.3 | |
| December | 2.3 | 6.9 | 16.4 |
All values in cubic feet per second (cfs).
Common questions
- When does White Clay Creek near Oglala, SD normally run highest?
- March, on the long-term record. The median daily flow that month is about 15.1 cfs, against 3.1 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for White Clay Creek near Oglala, SD?
- It depends on the month. In January, half of days historically fall near 5.1 cfs, with the middle 80% of days between 1.5 and 14.4 cfs. The month-by-month table on this page gives the full range.
- How long has White Clay Creek near Oglala, SD been measured?
- Discharge records at USGS site 06445980 begin in 1965, about 61 years. The long record is what makes the monthly percentiles on this page meaningful.
- Where is White Clay Creek near Oglala, SD?
- The gauge sits at 43.14651, -102.68331, in South Dakota, in hydrologic subbasin 10140201, at an elevation of about 3,023 feet, draining roughly 375 square miles.
- Can I use White Clay Creek near Oglala, SD 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.