About this river
Colorado River is a 6.8 mile river near Wilderness River Adventures in Arizona. Streamflow is measured at the USGS gauge Colorado River at Lees Ferry, AZ (site 09380000). The National Hydrography Dataset places it at stream order 10. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1922 to 2026
Colorado River typically runs highest in June, at a median 17,200 cfs, and lowest in October, at 8,430 cfs. The highest flow on record for any single day is 124,000 cfs, in 1957.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 10,200 | 5,350 to 13,700 | |
| February | 9,570 | 6,280 to 12,200 | |
| March | 9,770 | 7,660 to 11,800 | |
| April | 11,600 | 9,640 to 17,700 | |
| May | 16,000 | 10,400 to 35,700 | |
| June | 17,200 | 11,900 to 45,800 | |
| July | 15,000 | 11,900 to 20,900 | |
| August | 13,400 | 8,830 to 15,900 | |
| September | 9,770 | 6,330 to 13,300 | |
| October | 8,430 | 6,540 to 10,900 | |
| November | 8,555 | 6,710 to 11,600 | |
| December | 9,320 | 5,770 to 13,200 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 105 years of record. Statistics published by the US Geological Survey for Colorado River at Lees Ferry, AZ (site 09380000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Colorado River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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