Rivermatics

USGS Streamgage 09015000

Colorado River below Shadow Mountain Reservoir, CO

Colorado River below Shadow Mountain Reservoir, CO is USGS streamgage 09015000 in Colorado, monitoring river discharge in hydrologic subbasin 14010001. It drains a watershed of about 190 square miles. Discharge records at this site go back to 1947. Typical flow runs near 75.4 cfs in July and 24.8 cfs in April, with the higher of the two arriving in July.

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Gauge details

State
Colorado
Drainage area
190 sq mi
Gauge elevation
8,332 ft
Subbasin (HUC-8)
14010001
Coordinates
40.20519, -105.83756
USGS site number
09015000
Records begin
1947-10-01 (79 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 79 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 20.5 23.5 33.1
February 20.4 23.3 32.6
March 19.7 22.7 32.9
April 19.8 24.8 165.4
May 28.1 287.8 870.4
June 102.5 721.1 1,585.3
July 40.4 75.4 569.2
August 28.3 47.8 118.1
September 24.7 39.4 58.4
October 20.3 36.5 67.4
November 21.9 43.7 63.5
December 20.5 36.9 48.6

All values in cubic feet per second (cfs).

Other gauges in this subbasin