About this river
Cedar River is a 12.0 mile river near City of Des Moines Marina in Washington. Streamflow is measured at the USGS gauge Cedar River near Landsburg, WA (site 12117500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1895 to 2026
Cedar River typically runs highest in January, at a median 905 cfs, and lowest in September, at 296 cfs. The highest flow on record for any single day is 13,600 cfs, in 1912.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 905 | 575 to 1,220 | |
| February | 786 | 556 to 1,120 | |
| March | 702 | 539 to 945 | |
| April | 731 | 546 to 939 | |
| May | 752 | 548 to 985 | |
| June | 652 | 474 to 909 | |
| July | 406 | 341 to 519 | |
| August | 314 | 278 to 369 | |
| September | 296 | 262 to 345 | |
| October | 392 | 282 to 482 | |
| November | 575 | 413 to 955 | |
| December | 785 | 538 to 1,130 |
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 128 years of record. Statistics published by the US Geological Survey for Cedar River near Landsburg, WA (site 12117500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
4 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.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Cedar 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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