About this river
Kalamazoo River is a 61.3 mile river near Gun Lake Boat Rentals & Marina in Michigan. Streamflow is measured at the USGS gauge Kalamazoo River at Comstock, MI (site 04106000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1931 to 2026
Kalamazoo River typically runs highest in March, at a median 1,290 cfs, and lowest in September, at 552 cfs. The highest flow on record for any single day is 6,830 cfs, in 1947.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 873 | 627 to 1,190 | |
| February | 890 | 651 to 1,180 | |
| March | 1,290 | 1,000 to 1,690 | |
| April | 1,280 | 983 to 1,625 | |
| May | 1,020 | 759 to 1,380 | |
| June | 787 | 579 to 1,140 | |
| July | 655 | 494 to 855 | |
| August | 583 | 441 to 748 | |
| September | 552 | 429 to 718 | |
| October | 647 | 512 to 830 | |
| November | 778 | 600 to 988 | |
| December | 824 | 646 to 1,110 |
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 89 years of record. Statistics published by the US Geological Survey for Kalamazoo River at Comstock, MI (site 04106000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Kalamazoo 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 Kalamazoo 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.
