About this river
Bass Creek is a 5.5 mile stream near Rocktown Adventures of Rockford in Illinois. Streamflow is measured at the USGS gauge Rock River at Afton, WI (site 05430500). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1914 to 2026
Bass Creek typically runs highest in April, at a median 3,920 cfs, and lowest in September, at 924 cfs. The highest flow on record for any single day is 16,500 cfs, in 2008.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 1,270 | 800 to 1,980 | |
| February | 1,280 | 860 to 2,100 | |
| March | 3,380 | 1,750 to 4,830 | |
| April | 3,920 | 2,690 to 5,965 | |
| May | 2,460 | 1,550 to 3,610 | |
| June | 1,655 | 919 to 2,940 | |
| July | 1,080 | 684 to 2,070 | |
| August | 936 | 577 to 1,690 | |
| September | 924 | 571 to 1,640 | |
| October | 1,140 | 641 to 1,980 | |
| November | 1,485 | 860 to 2,305 | |
| December | 1,430 | 879 to 2,200 |
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 113 years of record. Statistics published by the US Geological Survey for Rock River at Afton, WI (site 05430500). 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 Bass Creek'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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