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Around North Branch Great Chazy River
Source: USGS GNIS · Public land: USGS PAD-US
About this river
North Branch Great Chazy River is a 20.1 mile river. Streamflow is measured at the USGS gauge Great Chazy River at Perry Mills NY (site 04271500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1928 to 2026
North Branch Great Chazy River typically runs highest in April, at a median 763 cfs, and lowest in September, at 64 cfs. The highest flow on record for any single day is 7,090 cfs, in 1998.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 183 | 130 to 321 |
| February | 160 | 118 to 240 |
| March | 310 | 180 to 611 |
| April | 763 | 465 to 1,255 |
| May | 268 | 180 to 461 |
| June | 139 | 96 to 243 |
| July | 79 | 53 to 133 |
| August | 69 | 46 to 107 |
| September | 64 | 40 to 98 |
| October | 88 | 55 to 132 |
| November | 164 | 88 to 279 |
| December | 195 | 116 to 301 |
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 76 years of record. Statistics published by the US Geological Survey for Great Chazy River at Perry Mills NY (site 04271500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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