USGS Streamgage 09217000
Green River near Green River, WY
Green River near Green River, WY is USGS streamgage 09217000 in Wyoming, monitoring river discharge in hydrologic subbasin 14040106. It drains a watershed of about 14,000 square miles. Discharge records at this site go back to 1918. Typical flow runs near 1,998.1 cfs in July and 1,310.7 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Wyoming
- Drainage area
- 14,000 sq mi
- Gauge elevation
- 6,069 ft
- Subbasin (HUC-8)
- 14040106
- Coordinates
- 41.51632, -109.44906
- USGS site number
- 09217000
- Records begin
- 1918-06-19 (108 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 74 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 | 342.9 | 800 | 1,294.5 | |
| February | 375.8 | 849.5 | 1,344.8 | |
| March | 541.5 | 966.5 | 1,626.1 | |
| April | 716.5 | 1,310.7 | 2,690.3 | |
| May | 730.2 | 1,825.8 | 4,729 | |
| June | 751 | 3,888.7 | 8,838.7 | |
| July | 670.4 | 1,998.1 | 6,394.5 | |
| August | 567.3 | 1,324.5 | 2,360.6 | |
| September | 522.7 | 954 | 1,520.3 | |
| October | 520.5 | 902.1 | 1,386.5 | |
| November | 464.4 | 869.1 | 1,241.7 | |
| December | 381.8 | 790.7 | 1,208.1 |
All values in cubic feet per second (cfs).