About this river
Rex River is a 4.5 mile river near Kayak Academy - *On-line shopping* in Washington. Streamflow is measured at the USGS gauge Rex River near Cedar Falls, WA (site 12115500). 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
Rex River typically runs highest in May, at a median 140 cfs, and lowest in August, at 11 cfs. The highest flow on record for any single day is 2,920 cfs, in 2009.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 75 | 44 to 159 | |
| February | 70 | 44 to 121 | |
| March | 74 | 45 to 119 | |
| April | 116 | 80 to 167 | |
| May | 140 | 95 to 204 | |
| June | 87 | 48 to 146 | |
| July | 22 | 15 to 43 | |
| August | 11 | 8.5 to 17 | |
| September | 13 | 7.8 to 26 | |
| October | 40 | 18 to 74 | |
| November | 98 | 53 to 170 | |
| December | 89 | 52 to 165 |
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 81 years of record. Statistics published by the US Geological Survey for Rex River near Cedar Falls, WA (site 12115500). 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 Rex River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
