About this river
North Branch Black River is a 3.9 mile stream near TBC Guides in New Hampshire. Streamflow is measured at the USGS gauge Black River at North Springfield, VT (site 01153000). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1930 to 2026
North Branch Black River typically runs highest in April, at a median 781 cfs, and lowest in August, at 49 cfs. The highest flow on record for any single day is 10,100 cfs, in 1936.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 150 | 100 to 233 | |
| February | 140 | 92 to 230 | |
| March | 249 | 153 to 504 | |
| April | 781 | 482 to 1,275 | |
| May | 331 | 211 to 554 | |
| June | 137 | 83 to 240 | |
| July | 69 | 43 to 117 | |
| August | 49 | 33 to 83 | |
| September | 53 | 33 to 93 | |
| October | 87 | 48 to 160 | |
| November | 172 | 97 to 302 | |
| December | 174 | 108 to 279 |
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 69 years of record. Statistics published by the US Geological Survey for Black River at North Springfield, VT (site 01153000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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