USGS Streamgage 06902000
Grand River near Sumner, MO
Grand River near Sumner, MO is USGS streamgage 06902000, monitoring river discharge in hydrologic subbasin 10280103. It drains a watershed of about 6,880 square miles. Discharge records at this site go back to 1909. Typical flow runs near 1,019.6 cfs in July and 2,519 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 6,880 sq mi
- Gauge elevation
- 644 ft
- Subbasin (HUC-8)
- 10280103
- Coordinates
- 39.64003, -93.27369
- USGS site number
- 06902000
- Records begin
- 1909-07-01 (117 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 100 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 | 104.3 | 665.2 | 3,996.5 | |
| February | 142.4 | 1,337.9 | 10,109.7 | |
| March | 377.6 | 2,239.4 | 18,509.7 | |
| April | 556.9 | 2,519 | 20,050 | |
| May | 527.7 | 2,665.8 | 21,354.8 | |
| June | 380.7 | 2,245.7 | 25,170 | |
| July | 205.2 | 1,019.6 | 10,462.6 | |
| August | 158.4 | 600.5 | 5,344.8 | |
| September | 123 | 429.5 | 9,052 | |
| October | 92 | 433.8 | 7,414.8 | |
| November | 112 | 546.4 | 5,451.7 | |
| December | 98.5 | 634.3 | 4,658.7 |
All values in cubic feet per second (cfs).