USGS Streamgage 13342500
Clearwater River at Spalding, ID
Clearwater River at Spalding, ID is USGS streamgage 13342500 in Idaho, monitoring river discharge in hydrologic subbasin 17060306. It drains a watershed of about 9,283 square miles. Discharge records at this site go back to 1910. Typical flow runs near 13,871 cfs in July and 22,816.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 9,283 sq mi
- Subbasin (HUC-8)
- 17060306
- Coordinates
- 46.44833, -116.8275
- USGS site number
- 13342500
- Records begin
- 1910-10-01 (116 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 55 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 | 3,536.8 | 7,019 | 17,654.8 | |
| February | 4,114.5 | 8,649 | 23,234.5 | |
| March | 6,038.4 | 13,599.7 | 32,967.7 | |
| April | 12,122.3 | 22,816.7 | 40,650 | |
| May | 20,077.4 | 34,535.5 | 54,148.4 | |
| June | 13,452.7 | 26,866.7 | 53,910 | |
| July | 6,832.6 | 13,871 | 23,193.5 | |
| August | 3,491.9 | 10,005.5 | 15,687.1 | |
| September | 2,946.3 | 6,313 | 11,346.7 | |
| October | 2,787.1 | 3,586.5 | 5,845.5 | |
| November | 3,263.7 | 4,988.3 | 10,494.7 | |
| December | 3,267.1 | 5,668.1 | 13,974.2 |
All values in cubic feet per second (cfs).