USGS Streamgage 06361000
Moreau River at Promise, SD
Moreau River at Promise, SD is USGS streamgage 06361000 in South Dakota, monitoring river discharge in hydrologic subbasin 10130306. It sits on the Moreau River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 5,240 square miles. Discharge records at this site go back to 1929. Typical flow runs near 72.2 cfs in July and 168.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- South Dakota
- Drainage area
- 5,240 sq mi
- Gauge elevation
- 1,609 ft
- Subbasin (HUC-8)
- 10130306
- Coordinates
- 45.34312, -100.61339
- USGS site number
- 06361000
- Records begin
- 1929-03-24 (97 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 26 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 | 0 | 4 | |
| February | 0 | 0 | 197.5 | |
| March | 7.3 | 103.6 | 2,505.6 | |
| April | 19.4 | 168.8 | 4,544.7 | |
| May | 1.3 | 54.2 | 894.9 | |
| June | 10 | 181.9 | 3,164.9 | |
| July | 1 | 72.2 | 677.1 | |
| August | 0 | 13 | 172.5 | |
| September | 0 | 3.7 | 124.7 | |
| October | 0 | 2.4 | 89 | |
| November | 0 | 5.8 | 37.3 | |
| December | 0 | 2.1 | 14.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Moreau River at Promise, SD normally run highest?
- June, on the long-term record. The median daily flow that month is about 181.9 cfs, against 0 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 Moreau River at Promise, SD?
- It depends on the month. In January, half of days historically fall near 0 cfs, with the middle 80% of days between 0 and 4 cfs. The month-by-month table on this page gives the full range.
- How long has Moreau River at Promise, SD been measured?
- Discharge records at USGS site 06361000 begin in 1929, about 97 years, covering roughly 65 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Moreau River at Promise, SD?
- The gauge sits at 45.34312, -100.61339, in South Dakota, in hydrologic subbasin 10130306, at an elevation of about 1,609 feet, draining roughly 5,240 square miles.
- Can I use Moreau River at Promise, 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.
Upstream and downstream on the Moreau River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Moreau River in full.
- Moreau River near Faith, SD 2,592 sq mi
- Moreau River near Whitehorse, SD 4,889 sq mi
- Moreau River at Promise, SD this page