USGS Streamgage 480608115242901
Libby Wetland Site below Schrieber Lake near Libby, MT
Libby Wetland Site below Schrieber Lake near Libby, MT is USGS streamgage 480608115242901 in Montana, monitoring river discharge in hydrologic subbasin 17010102. Discharge records at this site go back to 2011. Typical flow runs near 1.7 cfs in July and 7.9 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Montana
- Subbasin (HUC-8)
- 17010102
- Coordinates
- 48.10223, -115.40892
- USGS site number
- 480608115242901
- Records begin
- 2011-10-01 (15 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 10 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 | 0.3 | 1 | 1.9 | |
| February | 0.2 | 1.4 | 4.1 | |
| March | 0.2 | 3.4 | 15.4 | |
| April | 1.3 | 7.9 | 22.4 | |
| May | 2 | 5.1 | 11.1 | |
| June | 0.8 | 2.5 | 6.4 | |
| July | 0.5 | 1.7 | 2.7 | |
| August | 0.1 | 1.1 | 1.8 | |
| September | 0 | 0.8 | 1.4 | |
| October | 0 | 0.9 | 1.5 | |
| November | 0 | 1 | 1.5 | |
| December | 0.2 | 0.9 | 2 |
All values in cubic feet per second (cfs).