USGS Streamgage 09209400
Green River near La Barge, WY
Green River near La Barge, WY is USGS streamgage 09209400 in Wyoming, monitoring river discharge in hydrologic subbasin 14040101. It drains a watershed of about 3,825 square miles. Discharge records at this site go back to 1947. Typical flow runs near 2,574.5 cfs in July and 1,266.5 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Wyoming
- Drainage area
- 3,825 sq mi
- Gauge elevation
- 6,532 ft
- Subbasin (HUC-8)
- 14040101
- Coordinates
- 42.1927, -110.16325
- USGS site number
- 09209400
- Records begin
- 1947-06-22 (79 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 63 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 | 331.8 | 436.8 | 579.9 | |
| February | 352.7 | 466.1 | 619.1 | |
| March | 463.6 | 647.6 | 1,123.4 | |
| April | 674.7 | 1,266.5 | 2,233 | |
| May | 894.5 | 2,510.3 | 5,146.5 | |
| June | 1,835.3 | 4,579.7 | 10,111.7 | |
| July | 927.6 | 2,574.5 | 6,031.9 | |
| August | 533.6 | 1,087.8 | 2,205.8 | |
| September | 403.7 | 690 | 1,334 | |
| October | 471.8 | 702.9 | 1,213.2 | |
| November | 475.8 | 685.9 | 1,006.7 | |
| December | 372 | 497.2 | 667.9 |
All values in cubic feet per second (cfs).