USGS Streamgage 09266500
Ashley Creek near Vernal, UT
Ashley Creek near Vernal, UT is USGS streamgage 09266500 in Utah, monitoring river discharge in hydrologic subbasin 14060010. It drains a watershed of about 101 square miles. Discharge records at this site go back to 1912. Typical flow runs near 112.2 cfs in July and 32 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Utah
- Drainage area
- 101 sq mi
- Gauge elevation
- 6,234 ft
- Subbasin (HUC-8)
- 14060010
- Coordinates
- 40.57744, -109.62211
- USGS site number
- 09266500
- Records begin
- 1912-05-27 (114 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 112 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 | 11.4 | 21.1 | 38 | |
| February | 10.6 | 18.7 | 33.2 | |
| March | 9.7 | 18.1 | 30.5 | |
| April | 12.8 | 32 | 110 | |
| May | 96.5 | 278.5 | 665.4 | |
| June | 97.4 | 234.6 | 604.4 | |
| July | 56.1 | 112.2 | 182.6 | |
| August | 36.1 | 76.7 | 123.8 | |
| September | 22.5 | 57.4 | 102.4 | |
| October | 18.6 | 41.4 | 88.8 | |
| November | 16.2 | 31.1 | 62.7 | |
| December | 12.4 | 25 | 45.8 |
All values in cubic feet per second (cfs).