USGS Streamgage 13056500
Henrys Fork near Rexburg, ID
Henrys Fork near Rexburg, ID is USGS streamgage 13056500 in Idaho, monitoring river discharge in hydrologic subbasin 17040203. It drains a watershed of about 2,920 square miles. Discharge records at this site go back to 1909. Typical flow runs near 1,174.5 cfs in July and 2,129.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 2,920 sq mi
- Subbasin (HUC-8)
- 17040203
- Coordinates
- 43.82583, -111.905
- USGS site number
- 13056500
- Records begin
- 1909-04-01 (117 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 117 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 | 1,253.5 | 1,647.1 | 2,323.2 | |
| February | 1,304.5 | 1,717.9 | 2,306.6 | |
| March | 1,318.1 | 1,725.8 | 2,344.2 | |
| April | 1,139.3 | 2,129.7 | 3,597.7 | |
| May | 1,438.1 | 3,640 | 7,087.7 | |
| June | 1,042.8 | 3,403.7 | 7,159.7 | |
| July | 588.3 | 1,174.5 | 3,253.9 | |
| August | 671.8 | 1,145.2 | 1,959.4 | |
| September | 795.5 | 1,384.7 | 2,265.3 | |
| October | 931.6 | 1,621.6 | 2,398.4 | |
| November | 1,323 | 1,774 | 2,493.3 | |
| December | 1,269.4 | 1,721.3 | 2,377.7 |
All values in cubic feet per second (cfs).