About this river
Cedar River is a 3.9 mile river near Fish Finders Private Charters in Washington. Streamflow is measured at the USGS gauge Cedar River at Renton, WA (site 12119000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1946 to 2026
Cedar River typically runs highest in January, at a median 1,020 cfs, and lowest in August, at 148 cfs. The highest flow on record for any single day is 8,900 cfs, in 1991.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 1,020 | 603 to 1,450 | |
| February | 916 | 600 to 1,320 | |
| March | 788 | 540 to 1,100 | |
| April | 727 | 491 to 1,035 | |
| May | 665 | 439 to 916 | |
| June | 503 | 350 to 792 | |
| July | 247 | 179 to 319 | |
| August | 148 | 123 to 197 | |
| September | 188 | 163 to 230 | |
| October | 365 | 295 to 430 | |
| November | 589 | 416 to 985 | |
| December | 912 | 533 to 1,320 |
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 80 years of record. Statistics published by the US Geological Survey for Cedar River at Renton, WA (site 12119000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
3 mapped launches sit in the mapped area of Cedar River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Shady LakeShady LakePublic
- Spring LakeSpring LakePublic
- Lake DesireLake DesirePublic
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