USGS Streamgage 12452890
Mad River at Ardenvoir, WA
Mad River at Ardenvoir, WA is USGS streamgage 12452890 in Washington, monitoring river discharge in hydrologic subbasin 17020010. It drains a watershed of about 92 square miles. Discharge records at this site go back to 2002. Typical flow runs near 62.7 cfs in July and 118.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 92 sq mi
- Gauge elevation
- 1,269 ft
- Subbasin (HUC-8)
- 17020010
- Coordinates
- 47.73679, -120.3687
- USGS site number
- 12452890
- Records begin
- 2002-04-26 (24 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 24 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 | 19.8 | 28.5 | 66.5 | |
| February | 22.5 | 37.5 | 83.1 | |
| March | 33.5 | 56.1 | 108.5 | |
| April | 68.2 | 118.8 | 235.8 | |
| May | 163.3 | 320.3 | 590.1 | |
| June | 87.3 | 250.5 | 456.7 | |
| July | 32.2 | 62.7 | 124.1 | |
| August | 18.7 | 29.5 | 43.7 | |
| September | 15.8 | 21.8 | 32.3 | |
| October | 17.5 | 24 | 40.1 | |
| November | 20.5 | 30.9 | 71.7 | |
| December | 18.9 | 29.3 | 55.7 |
All values in cubic feet per second (cfs).