USGS Streamgage 06864500
Smoky Hill River at Ellsworth, KS
Smoky Hill River at Ellsworth, KS is USGS streamgage 06864500, monitoring river discharge in hydrologic subbasin 10260006. It drains a watershed of about 7,580 square miles. Discharge records at this site go back to 1895. Typical flow runs near 103.5 cfs in July and 60.8 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 7,580 sq mi
- Gauge elevation
- 1,507 ft
- Subbasin (HUC-8)
- 10260006
- Coordinates
- 38.72668, -98.23367
- USGS site number
- 06864500
- Records begin
- 1895-04-16 (131 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 131 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 | 13.6 | 35.5 | 108.2 | |
| February | 14.9 | 47.5 | 161.9 | |
| March | 19.9 | 50.8 | 243 | |
| April | 18.4 | 60.8 | 419.6 | |
| May | 21.4 | 100.9 | 833.7 | |
| June | 28.3 | 131.3 | 1,072.1 | |
| July | 14.6 | 103.5 | 958.2 | |
| August | 12.6 | 73.7 | 703.5 | |
| September | 10.9 | 62.2 | 491.8 | |
| October | 8.7 | 43.5 | 267.2 | |
| November | 12.7 | 42.5 | 161.2 | |
| December | 13.6 | 37.9 | 112.2 |
All values in cubic feet per second (cfs).