New Jersey River Levels & Streamflow
As of Sep 22, 2026, New Jersey rivers are running at 168% of normal across 96 USGS gauges — the highest is 5,160 cfs on the Delaware River At Trenton Nj. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in New Jersey.
Streamflow levels across New Jersey are currently 168% of normal, with the Delaware River At Trenton Nj reporting the highest discharge in the state at 5,160 cfs and a gauge stage of 9.01 ft.
Meanwhile, the Assunpink Creek At Trenton Nj is seeing a spike today — up 973% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into New Jersey's named rivers.
Active weather warnings for New Jersey
New Jersey is facing significant coastal hazards through Friday with multiple active warnings affecting Atlantic, Cape May, Ocean, and Monmouth counties. A Coastal Flood Advisory is in effect through 10 PM tonight, with up to one foot of inundation expected in low-lying areas near shorelines and tidal waterways in communities like Atlantic City and Cape May. A Coastal Flood Watch extends through late Thursday night with potential for one to two feet of inundation. High Surf Advisories remain active through Friday evening, bringing 6-12 foot breaking waves and dangerous rip currents that pose serious risks to swimmers and surfers. Widespread roadway flooding is expected in coastal and bayside communities, with many roads becoming impassable and potential structural damage to vulnerable buildings. Significant beach erosion is likely through the weekend, with moderate tidal flooding potentially continuing through Friday. Residents in affected areas should avoid coastal roads, stay out of the water, and prepare for extended impacts through the week.
State-wide streamflow overview
The New Jersey flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 9.01 ft
Biggest 24h spike
Now 499 cfs
Network coverage
USGS gauges feeding 0 named rivers in New Jersey.
Where every gauge actually sits
One dot per New Jersey streamgauge, placed by its own percent of normal. The state average is a single line through all of it.
Percent of normal compares today's discharge with the historical average for this calendar day. Tap any dot to open that gauge.
New Jersey streamflow, three water years
Statewide percent of normal, every day since Sep 2023. The dotted line is normal.
799 daily readings from 96 reporting gauges. Percent of normal is today's statewide discharge against the historical average for the same calendar day — 100% is normal, not "good". The axis tops out at 250%: 36 readings above that — including the 732% peak in Dec 2023 — are drawn along the top edge, so a few flood days cannot flatten three years of everything else. The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.
New Jersey USGS streamgauges
Every USGS gauge Snoflo tracks in New Jersey. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Delaware River At Trenton Nj, Nj
6 hours ago · USGS 01463500 |
5,650 cfs | 9.13 ft | 71°F | 55°F | 7 ft | Middle Delaware-Musconetcong |
|
Delaware River At Belvidere Nj, Nj
6 hours ago · USGS 01446500 |
4,970 cfs | 4.70 ft | 49°F | 50°F | 232 ft | Middle Delaware-Musconetcong |
|
Delaware River At Montague Nj, Nj
6 hours ago · USGS 01438500 |
4,060 cfs | 6.38 ft | 67°F | 47°F | 374 ft | Middle Delaware-Mongaup-Brodhead |
|
Passaic River At Little Falls Nj, Nj
6 hours ago · USGS 01389500 |
684 cfs | 1.85 ft | · | 58°F | 131 ft | Hackensack-Passaic |
|
Raritan River Below Calco Dam At Bound Brook Nj, Nj
6 hours ago · USGS 01403060 |
614 cfs | 17.61 ft | · | 65°F | 18 ft | Raritan |
|
Raritan River At Manville Nj, Nj
6 hours ago · USGS 01400500 |
446 cfs | 4.48 ft | 68°F | 65°F | 43 ft | Raritan |
|
Passaic River At Pine Brook Nj, Nj
6 hours ago · USGS 01381900 |
308 cfs | 14.41 ft | · | 57°F | 167 ft | Hackensack-Passaic |
|
Millstone River At Blackwells Mills Nj, Nj
6 hours ago · USGS 01402000 |
296 cfs | 2.22 ft | 71°F | 56°F | 29 ft | Raritan |
|
Pompton River At Pompton Plains Nj, Nj
6 hours ago · USGS 01388500 |
175 cfs | 8.02 ft | · | 66°F | 171 ft | Hackensack-Passaic |
|
Delaware And Raritan Canal At Port Mercer Nj, Nj
6 hours ago · USGS 01460440 |
144 cfs | 55.19 ft | 71°F | 57°F | 52 ft | Middle Delaware-Musconetcong |
|
North Branch Raritan River Near Raritan Nj, Nj
7 hours ago · USGS 01400000 |
137 cfs | 2.85 ft | · | 64°F | 51 ft | Raritan |
|
Assunpink Creek At Trenton Nj, Nj
6 hours ago · USGS 01464000 |
122 cfs | 3.25 ft | · | 55°F | 25 ft | Middle Delaware-Musconetcong |
|
Musconetcong River Near Bloomsbury Nj, Nj
6 hours ago · USGS 01457000 |
121 cfs | 1.53 ft | · | 52°F | 275 ft | Middle Delaware-Musconetcong |
|
Manalapan Brook At Spotswood Nj, Nj
7 hours ago · USGS 01405400 |
113 cfs | 11.04 ft | · | 58°F | 17 ft | Raritan |
|
Ramapo River At Pompton Lakes Nj, Nj
6 hours ago · USGS 01388000 |
105 cfs | 7.21 ft | 70°F | 53°F | 197 ft | Hackensack-Passaic |
|
Crosswicks Creek At Extonville Nj, Nj
6 hours ago · USGS 01464500 |
104 cfs | 3.41 ft | 68°F | 54°F | 30 ft | Crosswicks-Neshaminy |
|
Toms River Near Toms River Nj, Nj
7 hours ago · USGS 01408500 |
92 cfs | 3.37 ft | · | 56°F | 20 ft | Mullica-Toms |
|
Maurice River At Norma Nj, Nj
6 hours ago · USGS 01411500 |
89 cfs | 2.59 ft | 74°F | 57°F | 49 ft | Cohansey-Maurice |
|
Saddle River At Lodi Nj, Nj
6 hours ago · USGS 01391500 |
89 cfs | 2.24 ft | · | 59°F | 26 ft | Hackensack-Passaic |
|
Passaic River Near Chatham Nj, Nj
6 hours ago · USGS 01379500 |
84 cfs | 3.72 ft | · | 65°F | 199 ft | Hackensack-Passaic |
|
Paulins Kill At Blairstown Nj, Nj
6 hours ago · USGS 01443500 |
78 cfs | 1.65 ft | 82°F | 49°F | 399 ft | Middle Delaware-Musconetcong |
|
South Branch Raritan River At Stanton Nj, Nj
7 hours ago · USGS 01397000 |
77 cfs | 2.60 ft | · | 55°F | 163 ft | Raritan |
|
Ramapo River Near Mahwah Nj, Nj
6 hours ago · USGS 01387500 |
76 cfs | 2.70 ft | · | 52°F | 259 ft | Hackensack-Passaic |
|
Pequest River At Pequest Nj, Nj
6 hours ago · USGS 01445500 |
72 cfs | 1.58 ft | 61°F | 50°F | 468 ft | Middle Delaware-Musconetcong |
|
Whippany River Near Pine Brook Nj, Nj
6 hours ago · USGS 01381800 |
67 cfs | 3.46 ft | 67°F | 65°F | 170 ft | Hackensack-Passaic |
|
Bound Bk At Middlesex Nj, Nj
7 hours ago · USGS 01403900 |
59 cfs | 1.87 ft | · | 64°F | 28 ft | Raritan |
|
South Branch Raritan River Near High Bridge Nj, Nj
6 hours ago · USGS 01396500 |
58 cfs | 5.99 ft | 66°F | 54°F | 424 ft | Raritan |
|
North Branch Rancocas Creek At Pemberton Nj, Nj
6 hours ago · USGS 01467000 |
57 cfs | 1.60 ft | 68°F | 55°F | 33 ft | Lower Delaware |
|
West Branch Wading River Near Jenkins Nj, Nj
6 hours ago · USGS 01409810 |
53 cfs | 10.49 ft | · | 56°F | 22 ft | Mullica-Toms |
|
Passaic River Near Millington Nj, Nj
6 hours ago · USGS 01379000 |
49 cfs | 4.91 ft | · | 64°F | 232 ft | Hackensack-Passaic |
|
Lawrence Bk At Westons Mills Nj, Nj
6 hours ago · USGS 01405030 |
47 cfs | 15.92 ft | · | 65°F | 2 ft | Raritan |
|
North Branch Metedeconk River Near Lakewood Nj, Nj
6 hours ago · USGS 01408120 |
46 cfs | 3.25 ft | · | 56°F | 19 ft | Mullica-Toms |
|
Manasquan River At Squankum Nj, Nj
6 hours ago · USGS 01408000 |
45 cfs | 2.69 ft | 65°F | 56°F | 36 ft | Mullica-Toms |
|
Pascack Brook At Westwood Nj, Nj
6 hours ago · USGS 01377500 |
43 cfs | 1.70 ft | · | 58°F | 24 ft | Hackensack-Passaic |
|
Great Egg Harbor River At Folsom Nj, Nj
7 hours ago · USGS 01411000 |
40 cfs | 3.61 ft | · | 56°F | 109 ft | Great Egg Harbor |
|
Hackensack River At Rivervale Nj, Nj
6 hours ago · USGS 01377000 |
40 cfs | 1.73 ft | · | 58°F | 36 ft | Hackensack-Passaic |
|
South Branch Rancocas Creek At Vincentown Nj, Nj
6 hours ago · USGS 01465850 |
38 cfs | · | 68°F | 55°F | 17 ft | Lower Delaware |
|
Mullica River Near Batsto Nj, Nj
7 hours ago · USGS 01409400 |
38 cfs | · | · | 56°F | 13 ft | Mullica-Toms |
|
Greenwood Branch At New Lisbon Nj, Nj
6 hours ago · USGS 01466900 |
36 cfs | 1.98 ft | 66°F | 55°F | 38 ft | Lower Delaware |
|
Assunpink Creek Near Clarksville Nj, Nj
7 hours ago · USGS 01463620 |
35 cfs | 4.09 ft | · | 53°F | 51 ft | Middle Delaware-Musconetcong |
|
Rockaway River Below Reservoir At Boonton Nj, Nj
6 hours ago · USGS 01381000 |
34 cfs | 1.97 ft | · | 65°F | 198 ft | Hackensack-Passaic |
|
Lamington (Black) River Near Pottersville Nj, Nj
6 hours ago · USGS 01399500 |
34 cfs | 1.81 ft | · | 62°F | 422 ft | Raritan |
|
Oswego River At Harrisville Nj, Nj
6 hours ago · USGS 01410000 |
30 cfs | 10.27 ft | · | 57°F | 6 ft | Mullica-Toms |
|
Whippany River At Morristown Nj, Nj
6 hours ago · USGS 01381500 |
29 cfs | 2.22 ft | · | 64°F | 265 ft | Hackensack-Passaic |
|
Hohokus Brook At Ho-Ho-Kus Nj, Nj
6 hours ago · USGS 01391000 |
27 cfs | 1.47 ft | · | 57°F | 125 ft | Hackensack-Passaic |
|
Beaver Brook Near Belvidere Nj, Nj
6 hours ago · USGS 01446000 |
27 cfs | 1.79 ft | · | 50°F | 358 ft | Middle Delaware-Musconetcong |
|
Stony Brook At Princeton Nj, Nj
6 hours ago · USGS 01401000 |
27 cfs | 1.84 ft | 68°F | 57°F | 61 ft | Raritan |
|
Saddle River At Ridgewood Nj, Nj
6 hours ago · USGS 01390500 |
27 cfs | · | · | 57°F | 76 ft | Hackensack-Passaic |
|
Pequannock River At Riverdale Nj, Nj
6 hours ago · USGS 01382800 |
26 cfs | 2.02 ft | · | 65°F | 202 ft | Hackensack-Passaic |
|
Great Egg Harbor R Nr Blue Anchor Nj, Nj
7 hours ago · USGS 01410820 |
25 cfs | 2.37 ft | · | 56°F | 92 ft | Great Egg Harbor |
|
North Branch Raritan River Near Far Hills Nj, Nj
6 hours ago · USGS 01398500 |
24 cfs | 2.12 ft | · | 64°F | 208 ft | Raritan |
|
Musconetcong River At Outlet Of Lake Hopatcong Nj, Nj
6 hours ago · USGS 01455500 |
23 cfs | 1.55 ft | · | 50°F | 923 ft | Middle Delaware-Musconetcong |
|
Flat Brook Near Flatbrookville Nj, Nj
7 hours ago · USGS 01440000 |
22 cfs | 1.96 ft | 70°F | 48°F | 358 ft | Middle Delaware-Mongaup-Brodhead |
|
Neshanic River At Reaville Nj, Nj
6 hours ago · USGS 01398000 |
22 cfs | 2.81 ft | · | 55°F | 118 ft | Raritan |
|
Wanaque R At Wanaque Nj, Nj
6 hours ago · USGS 01387000 |
20 cfs | 1.40 ft | · | 52°F | 221 ft | Hackensack-Passaic |
|
Rahway River At Rahway Nj, Nj
6 hours ago · USGS 01395000 |
19 cfs | 1.50 ft | · | 58°F | 15 ft | Sandy Hook-Staten Island |
|
Raccoon Creek Near Swedesboro Nj, Nj
6 hours ago · USGS 01477120 |
19 cfs | 8.83 ft | 68°F | 57°F | 11 ft | Lower Delaware |
|
Cohansey River At Seeley Nj, Nj
6 hours ago · USGS 01412800 |
17 cfs | 2.82 ft | 70°F | 57°F | 30 ft | Cohansey-Maurice |
|
Westecunk Creek At Stafford Forge Nj, Nj
6 hours ago · USGS 01409280 |
15 cfs | 10.80 ft | 80°F | 57°F | 67 ft | Mullica-Toms |
|
Pequest River At Huntsville Nj, Nj
6 hours ago · USGS 01445000 |
14 cfs | 2.55 ft | · | 49°F | 566 ft | Middle Delaware-Musconetcong |
|
Eb Paulins Kill Near Lafayette Nj, Nj
6 hours ago · USGS 01443280 |
14 cfs | 2.25 ft | · | 48°F | 567 ft | Middle Delaware-Musconetcong |
|
Wanaque River At Awosting Nj, Nj
7 hours ago · USGS 01383500 |
14 cfs | 1.89 ft | · | 51°F | 603 ft | Hackensack-Passaic |
|
Rahway River Near Springfield Nj, Nj
6 hours ago · USGS 01394500 |
14 cfs | 1.36 ft | · | 60°F | 67 ft | Sandy Hook-Staten Island |
|
Spruce Run At Clinton Nj, Nj
6 hours ago · USGS 01396800 |
14 cfs | 1.48 ft | 78°F | 54°F | 196 ft | Raritan |
|
Pascack Brook At Park Ridge Nj, Nj
6 hours ago · USGS 01377370 |
13 cfs | 2.83 ft | · | 54°F | 118 ft | Hackensack-Passaic |
|
Deep Run At Old Bridge Nj, Nj
6 hours ago · USGS 01406050 |
13 cfs | 6.89 ft | · | 59°F | 5 ft | Raritan |
|
Shark River Near Neptune City Nj, Nj
6 hours ago · USGS 01407705 |
12 cfs | 1.53 ft | · | 66°F | 37 ft | Sandy Hook-Staten Island |
|
Elizabeth R At Ursino Lake At Elizabeth Nj, Nj
6 hours ago · USGS 01393450 |
12 cfs | 13.34 ft | · | 61°F | 21 ft | Sandy Hook-Staten Island |
|
Second River At Belleville Nj, Nj
6 hours ago · USGS 01392500 |
11 cfs | 1.40 ft | · | 58°F | 85 ft | Hackensack-Passaic |
|
Whippany River Near Morristown Nj, Nj
7 hours ago · USGS 01381400 |
10 cfs | 2.37 ft | · | 64°F | 314 ft | Hackensack-Passaic |
|
Saddle River At Upper Saddle River Nj, Nj
6 hours ago · USGS 01390450 |
10 cfs | 2.07 ft | · | 52°F | 190 ft | Hackensack-Passaic |
|
Pequannock R At Macopin Intake Dam Nj, Nj
6 hours ago · USGS 01382500 |
10 cfs | 2.13 ft | · | 64°F | 574 ft | Hackensack-Passaic |
|
Manasquan R Nr Allenwood Nj, Nj
6 hours ago · USGS 01408029 |
10 cfs | 7.22 ft | 66°F | 56°F | 51 ft | Mullica-Toms |
|
Jumping Brook Near Neptune City Nj, Nj
6 hours ago · USGS 01407760 |
10 cfs | 1.73 ft | · | 66°F | 42 ft | Sandy Hook-Staten Island |
|
Ringwood Creek Near Wanaque Nj, Nj
7 hours ago · USGS 01384500 |
9 cfs | 10.36 ft | · | 50°F | 302 ft | Hackensack-Passaic |
|
Great Egg Harbor R Nr Sicklerville Nj, Nj
7 hours ago · USGS 01410784 |
8 cfs | 4.08 ft | · | 56°F | 116 ft | Great Egg Harbor |
|
Mulhockaway Creek At Van Syckel Nj, Nj
7 hours ago · USGS 01396660 |
8 cfs | · | · | 54°F | 287 ft | Raritan |
|
Cooper River At Haddonfield Nj, Nj
7 hours ago · USGS 01467150 |
8 cfs | 1.33 ft | 70°F | 57°F | 10 ft | Lower Delaware |
|
Hackensack River At New Milford Nj, Nj
6 hours ago · USGS 01378500 |
7 cfs | 1.44 ft | · | 56°F | 6 ft | Hackensack-Passaic |
|
East Branch Bass River Near New Gretna Nj, Nj
6 hours ago · USGS 01410150 |
7 cfs | 3.56 ft | · | 57°F | 6 ft | Mullica-Toms |
|
Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj, Nj
6 hours ago · USGS 01379780 |
7 cfs | 2.45 ft | · | 63°F | 697 ft | Hackensack-Passaic |
|
South Branch Pennsauken Creek At Cherry Hill Nj, Nj
6 hours ago · USGS 01467081 |
7 cfs | 2.06 ft | 68°F | 57°F | 18 ft | Lower Delaware |
|
Green Pond Brook At Picatinny Arsenal Nj, Nj
6 hours ago · USGS 01379773 |
7 cfs | 1.54 ft | · | 63°F | 717 ft | Hackensack-Passaic |
|
West Brook Near Wanaque Nj, Nj
6 hours ago · USGS 01386000 |
7 cfs | · | · | 51°F | 318 ft | Hackensack-Passaic |
|
Sb Rockaway Creek At Whitehouse Station Nj, Nj
7 hours ago · USGS 01399670 |
6 cfs | 1.82 ft | · | 55°F | 169 ft | Raritan |
|
Tuckahoe River At Head Of River Nj, Nj
6 hours ago · USGS 01411300 |
5 cfs | 3.82 ft | · | 57°F | 8 ft | Great Egg Harbor |
|
Salem River At Woodstown Nj, Nj
6 hours ago · USGS 01482500 |
4 cfs | 11.08 ft | · | 58°F | 28 ft | Cohansey-Maurice |
|
Big Brook Near Marlboro Nj, Nj
6 hours ago · USGS 01407290 |
4 cfs | 9.53 ft | · | 60°F | 65 ft | Sandy Hook-Staten Island |
|
Canoe Brook Near Summit Nj, Nj
6 hours ago · USGS 01379530 |
3 cfs | 11.36 ft | 68°F | 55°F | 172 ft | Hackensack-Passaic |
|
Stony Brook At Watchung Nj, Nj
6 hours ago · USGS 01403540 |
3 cfs | 9.62 ft | · | 65°F | 181 ft | Raritan |
|
Green Brook At Seeley Mills Nj, Nj
6 hours ago · USGS 01403400 |
3 cfs | 1.91 ft | · | 55°F | 218 ft | Raritan |
|
Pike Run At Belle Mead Nj, Nj
6 hours ago · USGS 01401650 |
3 cfs | 3.03 ft | · | 56°F | 62 ft | Raritan |
|
Swimming River Near Red Bank Nj, Nj
6 hours ago · USGS 01407500 |
3 cfs | 4.65 ft | · | 61°F | 33 ft | Sandy Hook-Staten Island |
|
Yards Creek Near Blairstown Nj, Nj
7 hours ago · USGS 01443900 |
2 cfs | 1.97 ft | · | 50°F | 660 ft | Middle Delaware-Musconetcong |
|
Mcdonalds Branch In Lebanon State Forest Nj, Nj
6 hours ago · USGS 01466500 |
1 cfs | · | 64°F | 55°F | 115 ft | Lower Delaware |
|
West Branch Middle Brook Near Martinsville Nj, Nj
6 hours ago · USGS 01403150 |
0 cfs | 2.00 ft | · | 64°F | 249 ft | Raritan |
See every New Jersey gauge ranked against normal.
- Percentile rank & % of median for all 96 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About New Jersey streamflow
What are river levels like in New Jersey right now?
As of September 22, 2026, New Jersey rivers are running at 168% of normal across 96 USGS streamgauges, and the Delaware River At Trenton Nj is reporting the highest discharge at 5,160 cfs. The full sortable gauge table is below.
Which New Jersey river is running highest right now?
As of September 22, 2026, the highest discharge in New Jersey is 5,160 cfs on the Delaware River At Trenton Nj. See the sortable gauge table for the full statewide ranking.
Are New Jersey rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means New Jersey rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
Where does the New Jersey streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the New Jersey data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a New Jersey gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.
Streamflow in every state
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