USGS Streamgage 06935965
Missouri River at St. Charles, MO
Missouri River at St. Charles, MO is USGS streamgage 06935965, monitoring river discharge in hydrologic subbasin 10300200. It drains a watershed of about 524,000 square miles. Discharge records at this site go back to 1984. Typical flow runs near 101,677.4 cfs in July and 93,020 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 524,000 sq mi
- Gauge elevation
- 450 ft
- Subbasin (HUC-8)
- 10300200
- Coordinates
- 38.78719, -90.47181
- USGS site number
- 06935965
- Records begin
- 1984-10-01 (42 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 26 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 | 28,900 | 44,841.9 | 142,483.9 | |
| February | 32,353.6 | 56,758.6 | 124,857.1 | |
| March | 37,922.6 | 72,741.9 | 202,709.7 | |
| April | 50,160 | 93,020 | 191,200 | |
| May | 55,622.6 | 129,193.5 | 267,387.1 | |
| June | 54,443.3 | 132,200 | 282,566.7 | |
| July | 48,367.7 | 101,677.4 | 242,709.7 | |
| August | 42,371 | 70,403.2 | 176,967.7 | |
| September | 43,453.3 | 56,986.7 | 159,700 | |
| October | 38,335.5 | 52,474.2 | 157,064.5 | |
| November | 35,166.7 | 55,130 | 129,900 | |
| December | 29,429 | 46,474.2 | 121,961.3 |
All values in cubic feet per second (cfs).