About this river
South Branch Ashuelot River is a 1.9 mile stream near Billy Goat Boats in Massachusetts. Streamflow is measured at the USGS gauge Ashuelot River above the Branch, at Keene, NH (site 01158110). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2015 to 2025
South Branch Ashuelot River typically runs highest in April, at a median 427 cfs, and lowest in September, at 33 cfs. The highest flow on record for any single day is 1,210 cfs, in 2016.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 187 | 130 to 370 | |
| February | 141 | 84 to 221 | |
| March | 276 | 151 to 464 | |
| April | 427 | 286 to 619 | |
| May | 135 | 114 to 235 | |
| June | 69 | 36 to 155 | |
| July | 45 | 25 to 167 | |
| August | 36 | 15 to 130 | |
| September | 33 | 12 to 107 | |
| October | 90 | 52 to 194 | |
| November | 152 | 84 to 275 | |
| December | 240 | 132 to 403 |
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 11 years of record. Statistics published by the US Geological Survey for Ashuelot River above the Branch, at Keene, NH (site 01158110). 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 South Branch Ashuelot 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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