About this river
Floyd River is a 9.6 mile river near Missouri River Outdoors in South Dakota. Streamflow is measured at the USGS gauge Floyd River at James, IA (site 06600500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1936 to 2026
Floyd River typically runs highest in June, at a median 303 cfs, and lowest in January, at 40 cfs. The highest flow on record for any single day is 32,400 cfs, in 1953.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 40 | 13 to 140 | |
| February | 80 | 16 to 180 | |
| March | 216 | 90 to 552 | |
| April | 211 | 93 to 581 | |
| May | 222 | 86 to 607 | |
| June | 303 | 116 to 696 | |
| July | 173 | 77 to 458 | |
| August | 109 | 41 to 224 | |
| September | 77 | 38 to 165 | |
| October | 69 | 34 to 159 | |
| November | 67 | 36 to 169 | |
| December | 53 | 23 to 158 |
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 91 years of record. Statistics published by the US Geological Survey for Floyd River at James, IA (site 06600500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Floyd 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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