About this river
Ausable River is a 3.9 mile river near Burlington Harbor Marina in Vermont. Streamflow is measured at the USGS gauge Ausable River near AU Sable Forks NY (site 04275500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1910 to 2026
Ausable River typically runs highest in April, at a median 1,405 cfs, and lowest in September, at 216 cfs. The highest flow on record for any single day is 22,000 cfs, in 1997.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 321 | 220 to 515 | |
| February | 266 | 201 to 404 | |
| March | 474 | 255 to 911 | |
| April | 1,405 | 893 to 2,405 | |
| May | 1,070 | 710 to 1,720 | |
| June | 438 | 320 to 750 | |
| July | 264 | 194 to 426 | |
| August | 222 | 163 to 323 | |
| September | 216 | 169 to 321 | |
| October | 307 | 221 to 549 | |
| November | 459 | 312 to 715 | |
| December | 367 | 250 to 649 |
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 94 years of record. Statistics published by the US Geological Survey for Ausable River near AU Sable Forks NY (site 04275500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Ausable 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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