USGS Streamgage 06808500
West Nishnabotna River at Randolph, IA
West Nishnabotna River at Randolph, IA is USGS streamgage 06808500, monitoring river discharge in hydrologic subbasin 10240002. It drains a watershed of about 1,326 square miles. Discharge records at this site go back to 1947. Typical flow runs near 657.8 cfs in July and 579.1 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 1,326 sq mi
- Gauge elevation
- 963 ft
- Subbasin (HUC-8)
- 10240002
- Coordinates
- 40.87328, -95.58144
- USGS site number
- 06808500
- Records begin
- 1947-06-01 (79 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 78 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 | 66.7 | 213.8 | 782.2 | |
| February | 92.6 | 326.5 | 1,250.6 | |
| March | 144.1 | 546.4 | 2,131.9 | |
| April | 137.5 | 579.1 | 1,772.3 | |
| May | 154.3 | 804.3 | 2,640.6 | |
| June | 176.6 | 924 | 3,075.7 | |
| July | 144.8 | 657.8 | 1,913.5 | |
| August | 106.9 | 390.9 | 1,284.8 | |
| September | 95.2 | 317 | 1,286 | |
| October | 87.1 | 280.7 | 1,383.9 | |
| November | 102.2 | 269.1 | 1,095.6 | |
| December | 85.3 | 233 | 881.1 |
All values in cubic feet per second (cfs).