USGS Streamgage 13049500
Fall River near Chester, ID
Fall River near Chester, ID is USGS streamgage 13049500 in Idaho, monitoring river discharge in hydrologic subbasin 17040203. It drains a watershed of about 503 square miles. Discharge records at this site go back to 1920. Typical flow runs near 312.5 cfs in July and 772.4 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 503 sq mi
- Subbasin (HUC-8)
- 17040203
- Coordinates
- 44.01833, -111.56667
- USGS site number
- 13049500
- Records begin
- 1920-04-23 (106 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 106 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 | 373.1 | 464.1 | 588.1 | |
| February | 373.3 | 453.6 | 560.5 | |
| March | 395.3 | 468.1 | 625 | |
| April | 471.9 | 772.4 | 1,372.3 | |
| May | 1,016.5 | 1,910 | 3,075.8 | |
| June | 520 | 1,695.4 | 3,071.3 | |
| July | 60 | 312.5 | 1,037.2 | |
| August | 73.5 | 247.7 | 494.9 | |
| September | 152.2 | 334.8 | 543.3 | |
| October | 284.5 | 453.4 | 653.2 | |
| November | 396.1 | 517.4 | 702.8 | |
| December | 393.4 | 495.8 | 640.3 |
All values in cubic feet per second (cfs).