About this river
West Branch Ausable River is a 3.3 mile river near PaddleSurf Champlain in Vermont. Streamflow is measured at the USGS gauge East Branch Ausable River at AU Sable Forks NY (site 04275000). The mapped line runs from 44.4439, -73.7219 to 44.4408, -73.6744. The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1924 to 2026
West Branch Ausable River typically runs highest in April, at a median 665 cfs, and lowest in August, at 77 cfs. The highest flow on record for any single day is 8,320 cfs, in 2024.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 130 | 83 to 190 | |
| February | 110 | 76 to 165 | |
| March | 190 | 97 to 379 | |
| April | 665 | 376 to 1,180 | |
| May | 523 | 349 to 839 | |
| June | 168 | 124 to 267 | |
| July | 91 | 62 to 152 | |
| August | 77 | 54 to 128 | |
| September | 81 | 57 to 142 | |
| October | 123 | 79 to 242 | |
| November | 205 | 126 to 343 | |
| December | 145 | 100 to 240 |
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 East Branch Ausable River at AU Sable Forks NY (site 04275000). 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 West Branch 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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