USGS Streamgage 13068501
Blackfoot River and Bypass Channel near Blackfoot, ID
Blackfoot River and Bypass Channel near Blackfoot, ID is USGS streamgage 13068501 in Idaho, monitoring river discharge in hydrologic subbasin 17040207. It drains a watershed of about 1,295 square miles. Discharge records at this site go back to 1913. Typical flow runs near 54.4 cfs in July and 200 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 1,295 sq mi
- Subbasin (HUC-8)
- 17040207
- Coordinates
- 43.13047, -112.4772
- USGS site number
- 13068501
- Records begin
- 1913-04-27 (113 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 104 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 | 41.5 | 93 | 249.1 | |
| February | 40.3 | 96.8 | 302.8 | |
| March | 59 | 117.1 | 445.7 | |
| April | 63 | 200 | 677 | |
| May | 19.6 | 210.7 | 915.4 | |
| June | 6.8 | 127.5 | 586.1 | |
| July | 1.7 | 54.4 | 333.8 | |
| August | 1.3 | 71.2 | 383.1 | |
| September | 6.2 | 86.4 | 369 | |
| October | 56.5 | 243.3 | 524.2 | |
| November | 79.4 | 210.3 | 473.8 | |
| December | 56.4 | 115.6 | 285 |
All values in cubic feet per second (cfs).