USGS Streamgage 06915000
Big Bull C near Hillsdale, KS
Big Bull C near Hillsdale, KS is USGS streamgage 06915000, monitoring river discharge in hydrologic subbasin 10290102. It drains a watershed of about 143 square miles. Discharge records at this site go back to 1951. Typical flow runs near 20.5 cfs in July and 17.2 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 143 sq mi
- Gauge elevation
- 870 ft
- Subbasin (HUC-8)
- 10290102
- Coordinates
- 38.6564, -94.89635
- USGS site number
- 06915000
- Records begin
- 1951-07-11 (75 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 68 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 | 0.8 | 8.2 | 268.2 | |
| February | 1.3 | 10.2 | 232.6 | |
| March | 4.7 | 15.8 | 340 | |
| April | 5.6 | 17.2 | 277.5 | |
| May | 7.2 | 24.8 | 366 | |
| June | 6 | 30 | 859.1 | |
| July | 1 | 20.5 | 311.7 | |
| August | 0.3 | 18.4 | 100.5 | |
| September | 0.1 | 18.7 | 151.3 | |
| October | 0.1 | 10 | 100.7 | |
| November | 0.4 | 5.9 | 102 | |
| December | 0.5 | 6.4 | 248.3 |
All values in cubic feet per second (cfs).