USGS Streamgage 06819500
One Hundred and Two River at Maryville, MO
One Hundred and Two River at Maryville, MO is USGS streamgage 06819500, monitoring river discharge in hydrologic subbasin 10240013. It drains a watershed of about 515 square miles. Discharge records at this site go back to 1926. Typical flow runs near 41.1 cfs in July and 124.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 515 sq mi
- Gauge elevation
- 983 ft
- Subbasin (HUC-8)
- 10240013
- Coordinates
- 40.3455, -94.83236
- USGS site number
- 06819500
- Records begin
- 1926-09-16 (100 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 94 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 | 2.4 | 23.1 | 231.8 | |
| February | 4.5 | 50.4 | 579.4 | |
| March | 11.6 | 112.9 | 1,011.5 | |
| April | 12.7 | 124.2 | 842.5 | |
| May | 12.3 | 142.8 | 1,433.7 | |
| June | 6.9 | 114.1 | 1,318 | |
| July | 3.6 | 41.1 | 401 | |
| August | 2.6 | 21 | 288 | |
| September | 2.3 | 13.6 | 259.7 | |
| October | 1.8 | 12.6 | 271.6 | |
| November | 3.3 | 20.8 | 220.4 | |
| December | 2.9 | 23 | 249.1 |
All values in cubic feet per second (cfs).