About this river
Hackensack River is a 3.5 mile river near Kayak Rental NJ in New Jersey. Streamflow is measured at the USGS gauge Hackensack River at Rivervale NJ (site 01377000). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1942 to 2026
Hackensack River typically runs highest in April, at a median 88 cfs, and lowest in September, at 46 cfs. The highest flow on record for any single day is 4,380 cfs, in 2007.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 56 | 34 to 100 | |
| February | 64 | 41 to 98 | |
| March | 87 | 47 to 148 | |
| April | 88 | 56 to 148 | |
| May | 64 | 45 to 113 | |
| June | 48 | 35 to 82 | |
| July | 56 | 35 to 89 | |
| August | 53 | 33 to 88 | |
| September | 46 | 31 to 79 | |
| October | 46 | 28 to 72 | |
| November | 48 | 33 to 72 | |
| December | 50 | 33 to 94 |
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 84 years of record. Statistics published by the US Geological Survey for Hackensack River at Rivervale NJ (site 01377000). 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 Hackensack 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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