Around here
Around Rock River
Data Source: Recreation.gov · Public land: USGS PAD-US
About this river
Rock River is a 39.9 mile river near Golden Boat Rentals and Boat Club in Wisconsin. Streamflow is measured at the USGS gauge Rock River at Fort Atkinson, WI (site 05427085). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1999 to 2026
Rock River typically runs highest in April, at a median 3,505 cfs, and lowest in September, at 683 cfs. The highest flow on record for any single day is 15,100 cfs, in 2008.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 1,060 | 626 to 1,850 |
| February | 1,220 | 678 to 2,280 |
| March | 3,190 | 2,270 to 4,380 |
| April | 3,505 | 2,385 to 4,945 |
| May | 2,590 | 1,860 to 3,940 |
| June | 2,070 | 1,115 to 3,460 |
| July | 920 | 512 to 2,580 |
| August | 730 | 423 to 1,270 |
| September | 683 | 389 to 1,485 |
| October | 786 | 511 to 1,170 |
| November | 1,100 | 695 to 1,745 |
| December | 1,020 | 760 to 1,680 |
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 28 years of record. Statistics published by the US Geological Survey for Rock River at Fort Atkinson, WI (site 05427085). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Rock River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
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.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
