USGS Streamgage 06657000
North Platte River below Whalen Diversion Dam, WY
North Platte River below Whalen Diversion Dam, WY is USGS streamgage 06657000 in Wyoming, monitoring river discharge in hydrologic subbasin 10180009. It drains a watershed of about 16,318 square miles. Discharge records at this site go back to 1909. Typical flow runs near 1,607.1 cfs in July and 35 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Wyoming
- Drainage area
- 16,318 sq mi
- Gauge elevation
- 4,273 ft
- Subbasin (HUC-8)
- 10180009
- Coordinates
- 42.24101, -104.62802
- USGS site number
- 06657000
- Records begin
- 1909-06-03 (117 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 110 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 | 1.3 | 8.3 | 166.4 | |
| February | 1 | 9.4 | 222.6 | |
| March | 1.3 | 11.6 | 569.2 | |
| April | 5.8 | 35 | 1,715.1 | |
| May | 29.1 | 573.7 | 3,343.5 | |
| June | 115.4 | 1,070.8 | 4,538 | |
| July | 954.7 | 1,607.1 | 3,360 | |
| August | 775.8 | 1,284.1 | 2,409.4 | |
| September | 126.2 | 479.2 | 1,659.7 | |
| October | 12.8 | 39.5 | 474.3 | |
| November | 5.1 | 11.5 | 245.7 | |
| December | 2.2 | 8.3 | 178.6 |
All values in cubic feet per second (cfs).