About this river
South Fork Big Nemaha River is an 8.0 mile river near Kayakjak's Outfitters in Nebraska. Streamflow is measured at the USGS gauge North Fork Big Nemaha River at Humboldt, Nebr. (site 06814500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1953 to 2026
South Fork Big Nemaha River typically runs highest in May, at a median 89 cfs, and lowest in September, at 34 cfs. The highest flow on record for any single day is 30,000 cfs, in 1993.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 46 | 28 to 71 | |
| February | 67 | 39 to 115 | |
| March | 79 | 42 to 170 | |
| April | 73 | 40 to 157 | |
| May | 89 | 43 to 228 | |
| June | 69 | 40 to 195 | |
| July | 52 | 24 to 118 | |
| August | 39 | 18 to 75 | |
| September | 34 | 19 to 67 | |
| October | 40 | 21 to 66 | |
| November | 43 | 30 to 69 | |
| December | 43 | 30 to 71 |
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 56 years of record. Statistics published by the US Geological Survey for North Fork Big Nemaha River at Humboldt, Nebr. (site 06814500). 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 South Fork Big Nemaha 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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