OARS American River Rafting Outpost
Middle Fork American River near OARS American River Rafting Outpost
About this river
Middle Fork American River is a 3.6 mile river near OARS American River Rafting Outpost in California. Streamflow is measured at the USGS gauge NF American R at North Fork Dam CA (site 11427000). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1942 to 2026
Middle Fork American River typically runs highest in April, at a median 1,420 cfs, and lowest in September, at 47 cfs. The highest flow on record for any single day is 50,100 cfs, in 1997.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 502 | 209 to 1,230 | |
| February | 854 | 447 to 1,600 | |
| March | 1,160 | 707 to 1,770 | |
| April | 1,420 | 938 to 2,015 | |
| May | 1,410 | 820 to 2,150 | |
| June | 385 | 240 to 1,115 | |
| July | 103 | 64 to 218 | |
| August | 54 | 40 to 79 | |
| September | 47 | 34 to 62 | |
| October | 52 | 37 to 69 | |
| November | 104 | 66 to 232 | |
| December | 238 | 113 to 611 |
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 84 years of record. Statistics published by the US Geological Survey for NF American R at North Fork Dam CA (site 11427000). 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 Middle Fork American 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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