About this river
South Fork Williams Fork is a 4.6 mile stream near Adventure Paddle Tours in Colorado. Streamflow is measured at the USGS gauge South Fork of Williams Fork near Leal, CO (site 09035900). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1966 to 2026
South Fork Williams Fork typically runs highest in June, at a median 155 cfs, and lowest in February, at 7.6 cfs. The highest flow on record for any single day is 404 cfs, in 1995.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 8.0 | 6.8 to 9.3 | |
| February | 7.6 | 6.6 to 8.6 | |
| March | 7.8 | 6.8 to 8.9 | |
| April | 12 | 8.4 to 15 | |
| May | 48 | 33 to 76 | |
| June | 155 | 109 to 206 | |
| July | 51 | 39 to 72 | |
| August | 23 | 18 to 27 | |
| September | 15 | 13 to 19 | |
| October | 13 | 11 to 15 | |
| November | 11 | 9.3 to 13 | |
| December | 9.3 | 7.8 to 11 |
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 60 years of record. Statistics published by the US Geological Survey for South Fork of Williams Fork near Leal, CO (site 09035900). 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 South Fork Williams Fork'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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