USGS Streamgage 12414500
St Joe River at Calder, ID
St Joe River at Calder, ID is USGS streamgage 12414500 in Idaho, monitoring river discharge in hydrologic subbasin 17010304. It drains a watershed of about 1,025 square miles. Discharge records at this site go back to 1911. Typical flow runs near 1,176.8 cfs in July and 4,561 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 1,025 sq mi
- Gauge elevation
- 2,181 ft
- Subbasin (HUC-8)
- 17010304
- Coordinates
- 47.27444, -116.18889
- USGS site number
- 12414500
- Records begin
- 1911-05-01 (115 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 114 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 | 343.7 | 781.7 | 2,456.1 | |
| February | 413.6 | 1,029.5 | 3,002.4 | |
| March | 736.9 | 1,691.9 | 4,240.3 | |
| April | 2,202.3 | 4,561 | 8,944 | |
| May | 3,660.6 | 7,227.4 | 13,061.3 | |
| June | 1,789.5 | 3,954.3 | 8,331 | |
| July | 722.5 | 1,176.8 | 2,310 | |
| August | 415.4 | 574.3 | 822.5 | |
| September | 334.5 | 430 | 601.2 | |
| October | 312.8 | 424.5 | 899.3 | |
| November | 308.4 | 600.1 | 1,955.7 | |
| December | 316.2 | 716.9 | 2,586.8 |
All values in cubic feet per second (cfs).