USGS Water-Year Summary 2023
09034250 COLORADO RIVER AT WINDY GAP NEAR GRANBY, CO
LOCATION - Lat 40°06'30", long 106°00'13" referenced to North American Datum of 1927, in NW 1/4 sec.27, T.2 N., R.77 W., Grand County, CO, Hydrologic Unit 14010001, on left bank of county highway bridge, 1.1 mi downstream from Windy Gap diversion dam, 2.4 mi downstream from mouth of Fraser River, and 3.8 mi northwest of Granby.
DRAINAGE AREA - 788 mi².
REVISIONS HISTORY - WDR-US-2011: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1981 to current year.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 7,790 ft above NGVD of 1929, from topographic map. Prior to May 4, 2017, site located 300 ft downstream, at same datum.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - April 2023 to September 2023 (seasonal records only).
INSTRUMENTATION - Tipping-bucket rain gage with satellite telemetry. Elevation of gage is 7,790 ft above NGVD of 1929, from topographic map.
EXTREMES FOR PERIOD OF RECORD - (seasonal only) Maximum daily precipitation, 0.9 inches, Aug. 24, 2023.