USGS Streamgage 06872500
NF Solomon River at Portis, KS
NF Solomon River at Portis, KS is USGS streamgage 06872500, monitoring river discharge in hydrologic subbasin 10260012. It drains a watershed of about 2,315 square miles. Discharge records at this site go back to 1945. Typical flow runs near 41.3 cfs in July and 41.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 2,315 sq mi
- Gauge elevation
- 1,531 ft
- Subbasin (HUC-8)
- 10260012
- Coordinates
- 39.553, -98.69232
- USGS site number
- 06872500
- Records begin
- 1945-09-17 (81 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 81 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 | 10.5 | 25.8 | 130.5 | |
| February | 14.7 | 35.1 | 150.2 | |
| March | 16.9 | 39.8 | 173.6 | |
| April | 15.2 | 41.5 | 190.1 | |
| May | 14.5 | 50 | 364.3 | |
| June | 14 | 56.3 | 544.4 | |
| July | 7.5 | 41.3 | 392.8 | |
| August | 7.8 | 37.8 | 218 | |
| September | 6.7 | 26.9 | 143.3 | |
| October | 7.4 | 21 | 112.4 | |
| November | 9.2 | 23.5 | 108.5 | |
| December | 9.8 | 24.4 | 115.3 |
All values in cubic feet per second (cfs).