About this river
Rock River is an 11.7 mile river near Rutabaga Outdoor Adventures in Wisconsin. Streamflow is measured at the USGS gauge Rock River at Newville, WI (site 05427530). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2009 to 2026
Rock River typically runs highest in April, at a median 4,090 cfs, and lowest in September, at 973 cfs. The highest flow on record for any single day is 11,000 cfs, in 2013.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 1,430 | 852 to 2,120 | |
| February | 1,540 | 774 to 2,260 | |
| March | 3,460 | 2,460 to 4,550 | |
| April | 4,090 | 3,065 to 5,545 | |
| May | 3,520 | 2,270 to 4,730 | |
| June | 2,510 | 1,380 to 3,795 | |
| July | 2,100 | 673 to 3,690 | |
| August | 1,040 | 533 to 1,980 | |
| September | 973 | 437 to 2,315 | |
| October | 1,060 | 712 to 1,820 | |
| November | 1,475 | 943 to 2,585 | |
| December | 1,380 | 936 to 2,310 |
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 17 years of record. Statistics published by the US Geological Survey for Rock River at Newville, WI (site 05427530). 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 Rock 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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