USGS Streamgage 06809500
East Nishnabotna River at Red Oak, IA
East Nishnabotna River at Red Oak, IA is USGS streamgage 06809500, monitoring river discharge in hydrologic subbasin 10240003. It drains a watershed of about 894 square miles. Discharge records at this site go back to 1917. Typical flow runs near 339.6 cfs in July and 350.4 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 894 sq mi
- Gauge elevation
- 1,037 ft
- Subbasin (HUC-8)
- 10240003
- Coordinates
- 41.00903, -95.24136
- USGS site number
- 06809500
- Records begin
- 1917-06-07 (109 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 108 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 | 27.2 | 105.6 | 463.3 | |
| February | 48.9 | 178 | 841.7 | |
| March | 80.4 | 326.5 | 1,482.6 | |
| April | 79.9 | 350.4 | 1,420.3 | |
| May | 71.5 | 488.4 | 2,020 | |
| June | 83.7 | 530 | 2,448.7 | |
| July | 63.6 | 339.6 | 1,242.2 | |
| August | 53.2 | 198.7 | 757.2 | |
| September | 41.4 | 155.7 | 826.6 | |
| October | 40.3 | 138.9 | 732 | |
| November | 47.5 | 143.3 | 575.2 | |
| December | 35.9 | 109 | 493.3 |
All values in cubic feet per second (cfs).