Streamflow

Below normal

Colorado River at Lees Ferry streamflow

Daily mean discharge, Colorado (Compact Point) basin, Arizona

Data through Aug 12, 2026 · source last checked Aug 13, 2026 · page revised Aug 13, 2026

Cite
cfs
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About this data
Source
US Geological Survey (USGS)
Series
Daily mean streamflow (discharge)
Geography
Colorado River at Lees Ferry
Unit
cfs
Calculation
Daily mean
Last observation
Aug 12, 2026
Update frequency
Daily

Now 7,930 cfs, 37% below the 5-yr median.

Colorado River discharge at Lees Ferry stood at 7,770 cfs on August 9, running 38% below the 5-year median. Flow is down 35.8% from a year ago, when the gauge read 12,100 cfs. Month over month, flow fell 1.4%.

The numbers
PeriodCurrentPriorChange
Week over week7,930 cfs7,920 cfs+0.1%
Month over month7,930 cfs7,890 cfs+0.5%
Year over year7,930 cfs12,400 cfs-36.0%
vs 5-yr median7,930 cfs12,500 cfs-36.6%