About this river
Blackstone River is a 2.9 mile river near On the Rocks Charters in Rhode Island. Streamflow is measured at the USGS gauge Blackstone R at Roosevelt ST at Pawtucket RI (site 01113895). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2004 to 2026
Blackstone River typically runs highest in April, at a median 1,375 cfs, and lowest in September, at 198 cfs. The highest flow on record for any single day is 16,300 cfs, in 2010.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 1,030 | 693 to 1,460 | |
| February | 907 | 609 to 1,330 | |
| March | 1,190 | 863 to 1,870 | |
| April | 1,375 | 983 to 2,005 | |
| May | 820 | 601 to 1,210 | |
| June | 487 | 333 to 730 | |
| July | 298 | 205 to 563 | |
| August | 250 | 142 to 494 | |
| September | 198 | 123 to 525 | |
| October | 495 | 263 to 832 | |
| November | 679 | 451 to 1,040 | |
| December | 1,010 | 577 to 1,620 |
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 21 years of record. Statistics published by the US Geological Survey for Blackstone R at Roosevelt ST at Pawtucket RI (site 01113895). 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 Blackstone 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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