Dead Diamond River in New Hampshire
Around here
Around Dead Diamond River
Data Source: Recreation.gov · Public land: USGS PAD-US
About this river
Dead Diamond River is an 18.4 mile river. Streamflow is measured at the USGS gauge Diamond River near Wentworth Location, NH (site 01052500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1941 to 2026
Dead Diamond River typically runs highest in April, at a median 782 cfs, and lowest in September, at 74 cfs. The highest flow on record for any single day is 9,900 cfs, in 1998.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 118 | 81 to 170 |
| February | 88 | 65 to 138 |
| March | 152 | 79 to 297 |
| April | 782 | 433 to 1,460 |
| May | 590 | 339 to 1,010 |
| June | 204 | 119 to 351 |
| July | 107 | 63 to 190 |
| August | 77 | 42 to 159 |
| September | 74 | 43 to 144 |
| October | 159 | 86 to 314 |
| November | 228 | 160 to 398 |
| December | 165 | 117 to 263 |
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 85 years of record. Statistics published by the US Geological Survey for Diamond River near Wentworth Location, NH (site 01052500). 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 Dead Diamond 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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