USGS Streamgage 12113349
Mill Creek near Mouth at Orillia, WA
Mill Creek near Mouth at Orillia, WA is USGS streamgage 12113349 in Washington, monitoring river discharge in hydrologic subbasin 17110013. It drains a watershed of about 6 square miles. Discharge records at this site go back to 1994. Typical flow runs near 1.8 cfs in July and 9.9 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 6 sq mi
- Gauge elevation
- 22 ft
- Subbasin (HUC-8)
- 17110013
- Coordinates
- 47.4301, -122.24318
- USGS site number
- 12113349
- Records begin
- 1994-02-25 (32 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 32 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 | 6.7 | 22 | 72.8 | |
| February | 5.6 | 17.9 | 58 | |
| March | 6.1 | 15.6 | 51 | |
| April | 4 | 9.9 | 33.3 | |
| May | 2.2 | 5.8 | 20.1 | |
| June | 1.6 | 3.8 | 14.9 | |
| July | 0.7 | 1.8 | 6.4 | |
| August | 0.2 | 1.4 | 6.5 | |
| September | 0.3 | 1.7 | 13.7 | |
| October | 1.2 | 5.3 | 35.8 | |
| November | 3.8 | 17.1 | 63.9 | |
| December | 5.7 | 20.8 | 69.6 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Green River at Tukwila, WA
- Duwamish River at Golf Course at Tukwila, WA
- Duwamish River at E Marginal Way Br at Duwamish, WA
- Green River below Howard A Hanson Dam, WA
- Green River at Purification Plant near Palmer, WA
- Newaukum Creek near Black Diamond, WA
- Green River below Crisp Creek near Black Diamond, WA
- Big Soos Creek above Hatchery near Auburn, WA