About this river
Swift River is a 6.3 mile river near Maine River Runners LLC in Maine. Streamflow is measured at the USGS gauge Swift River near Roxbury, Maine (site 01055000). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1929 to 2026
Swift River typically runs highest in April, at a median 493 cfs, and lowest in August, at 30 cfs. The highest flow on record for any single day is 9,990 cfs, in 2024.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 69 | 48 to 106 | |
| February | 54 | 40 to 86 | |
| March | 95 | 52 to 165 | |
| April | 493 | 299 to 864 | |
| May | 318 | 186 to 598 | |
| June | 100 | 58 to 184 | |
| July | 51 | 28 to 92 | |
| August | 30 | 17 to 64 | |
| September | 30 | 17 to 65 | |
| October | 68 | 32 to 140 | |
| November | 131 | 83 to 225 | |
| December | 100 | 65 to 160 |
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 97 years of record. Statistics published by the US Geological Survey for Swift River near Roxbury, Maine (site 01055000). 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 Swift 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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