USGS Streamgage 10038000
Bear River below Smiths Fork, near Cokeville, WY
Bear River below Smiths Fork, near Cokeville, WY is USGS streamgage 10038000 in Wyoming, monitoring river discharge in hydrologic subbasin 16010102. It drains a watershed of about 2,447 square miles. Discharge records at this site go back to 1954. Typical flow runs near 417.7 cfs in July and 417.5 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Wyoming
- Drainage area
- 2,447 sq mi
- Gauge elevation
- 6,133 ft
- Subbasin (HUC-8)
- 16010102
- Coordinates
- 42.12653, -110.9732
- USGS site number
- 10038000
- Records begin
- 1954-05-01 (72 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 72 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 | 96.5 | 148.9 | 275.9 | |
| February | 98.4 | 161.1 | 320.6 | |
| March | 125.3 | 240.6 | 641.2 | |
| April | 145.1 | 417.5 | 1,482.7 | |
| May | 229.7 | 678.9 | 2,044.8 | |
| June | 274.9 | 823.5 | 2,489 | |
| July | 157.6 | 417.7 | 1,159.2 | |
| August | 102.5 | 175.1 | 450 | |
| September | 88.3 | 142 | 341.3 | |
| October | 92.1 | 162.9 | 391.9 | |
| November | 117.3 | 175.2 | 326.7 | |
| December | 104.3 | 158.8 | 307.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Bear River below Smiths Fork, near Cokeville, WY normally run highest?
- June, on the long-term record. The median daily flow that month is about 823.5 cfs, against 142 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Bear River below Smiths Fork, near Cokeville, WY?
- It depends on the month. In January, half of days historically fall near 148.9 cfs, with the middle 80% of days between 96.5 and 275.9 cfs. The month-by-month table on this page gives the full range.
- How long has Bear River below Smiths Fork, near Cokeville, WY been measured?
- Discharge records at USGS site 10038000 begin in 1954, about 72 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Bear River below Smiths Fork, near Cokeville, WY?
- The gauge sits at 42.12653, -110.9732, in Wyoming, in hydrologic subbasin 16010102, at an elevation of about 6,133 feet, draining roughly 2,447 square miles.
- Can I use Bear River below Smiths Fork, near Cokeville, WY data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.