Lake Hopatcong Adventure Company
North Branch Raritan River near Lake Hopatcong Adventure Company
About this river
North Branch Raritan River is a 1.9 mile river near Lake Hopatcong Adventure Company in New Jersey. Streamflow is measured at the USGS gauge North Branch Raritan River near Far Hills NJ (site 01398500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1922 to 2026
North Branch Raritan River typically runs highest in March, at a median 65 cfs, and lowest in September, at 15 cfs. The highest flow on record for any single day is 2,230 cfs, in 2011.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 39 | 26 to 62 | |
| February | 44 | 30 to 65 | |
| March | 65 | 45 to 93 | |
| April | 62 | 45 to 94 | |
| May | 46 | 35 to 68 | |
| June | 29 | 21 to 44 | |
| July | 19 | 13 to 31 | |
| August | 17 | 9.8 to 29 | |
| September | 15 | 8.5 to 27 | |
| October | 16 | 10 to 28 | |
| November | 25 | 15 to 47 | |
| December | 36 | 21 to 61 |
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 103 years of record. Statistics published by the US Geological Survey for North Branch Raritan River near Far Hills NJ (site 01398500). 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 North Branch Raritan 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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