Colorado River in Arizona
Around here
Around Colorado River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Colorado River is a 46.8 mile river. Streamflow is measured at the USGS gauge Colorado River near Grand Canyon, AZ (site 09402500). The National Hydrography Dataset places it at stream order 10. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1923 to 2026
Colorado River typically runs highest in June, at a median 17,850 cfs, and lowest in November, at 9,035 cfs. The highest flow on record for any single day is 124,000 cfs, in 1957.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 10,600 | 5,850 to 14,200 |
| February | 10,000 | 6,620 to 13,200 |
| March | 10,600 | 8,260 to 13,000 |
| April | 12,250 | 10,200 to 19,000 |
| May | 16,200 | 10,900 to 36,200 |
| June | 17,850 | 12,650 to 46,050 |
| July | 15,600 | 12,300 to 21,200 |
| August | 14,200 | 9,590 to 16,800 |
| September | 10,500 | 6,870 to 14,350 |
| October | 9,040 | 6,840 to 11,700 |
| November | 9,035 | 7,050 to 12,050 |
| December | 9,800 | 6,190 to 13,800 |
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 101 years of record. Statistics published by the US Geological Survey for Colorado River near Grand Canyon, AZ (site 09402500). 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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