About this river
East Branch Chagrin River is a 10.8 mile stream near Grand River Canoe Livery in Ohio. Streamflow is measured at the USGS gauge Chagrin River at Willoughby OH (site 04209000). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1925 to 2026
East Branch Chagrin River typically runs highest in March, at a median 450 cfs, and lowest in September, at 58 cfs. The highest flow on record for any single day is 12,300 cfs, in 1948.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 249 | 150 to 473 | |
| February | 274 | 156 to 604 | |
| March | 450 | 271 to 800 | |
| April | 338 | 198 to 601 | |
| May | 204 | 130 to 376 | |
| June | 102 | 65 to 197 | |
| July | 76 | 46 to 140 | |
| August | 59 | 37 to 110 | |
| September | 58 | 35 to 116 | |
| October | 86 | 51 to 167 | |
| November | 170 | 96 to 355 | |
| December | 254 | 140 to 459 |
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 90 years of record. Statistics published by the US Geological Survey for Chagrin River at Willoughby OH (site 04209000). 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 East Branch Chagrin 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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