USGS Streamgage 09014050
Grand Lake Outlet below Chipmunk Ln at Grand Lake, CO
Grand Lake Outlet below Chipmunk Ln at Grand Lake, CO is USGS streamgage 09014050 in Colorado, monitoring river discharge in hydrologic subbasin 14010001. It drains a watershed of about 76 square miles. Discharge records at this site go back to 2010. Typical flow runs near -197 cfs in July and -318.1 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Colorado
- Drainage area
- 76 sq mi
- Gauge elevation
- 8,373 ft
- Subbasin (HUC-8)
- 14010001
- Coordinates
- 40.24611, -105.82883
- USGS site number
- 09014050
- Records begin
- 2010-04-09 (16 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 16 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 | — | -453.3 | — | |
| February | -565 | -502.3 | -128 | |
| March | -553.8 | -420.6 | -127.7 | |
| April | -532.1 | -318.1 | 53.3 | |
| May | -347 | -39.8 | 392.1 | |
| June | -83.1 | 452.4 | 952.3 | |
| July | -411.5 | -197 | 359.9 | |
| August | -510.7 | -331.1 | 61.9 | |
| September | -521.9 | -308.9 | 19.1 | |
| October | — | -160.2 | — | |
| November | — | 4.1 | — | |
| December | — | -247.5 | — |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Colorado River below Shadow Mountain Reservoir, CO
- Colorado River below Lake Granby, CO
- Colorado River near Granby, CO
- Willow Creek below Cabin Creek near Granby, CO
- Willow Creek above Willow Creek Reservoir, CO
- Willow Creek below Willow Creek Reservoir, CO
- Fraser River at Upper Sta, near Winter Park, CO
- Fraser River at Moffat Tunnel at Winter Park, CO