How high is the North Branch Raritan River Near Far Hills NJ right now?

The North Branch Raritan River Near Far Hills NJ is currently flowing at 14 cubic feet per second with a gage height of 2.15 feet, based on the most recent USGS instantaneous reading.

Is the flow on the North Branch Raritan River Near Far Hills NJ normal for this time of year?

Current flow is classified as very low for June 11. Today's discharge is at the 9th percentile compared to the long-term historical record at this gauge.

Is the North Branch Raritan River Near Far Hills NJ at flood stage?

No — the gage height is 3.85 feet below the NWS flood-stage threshold of 6.0 feet.

What is the historical median flow for the North Branch Raritan River Near Far Hills NJ on June 11?

The long-term median discharge for this date is 30 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 16 to 74 cfs.

Where is the North Branch Raritan River Near Far Hills NJ stream gauge located?

The North Branch Raritan River Near Far Hills NJ stream gauge is operated by the USGS in Somerset County, NJ on the North Branch Raritan River. USGS site number 01398500 (coordinates 40.7083, -74.6361).

North Branch Raritan River Near Far Hills NJ

USGS Site No: 01398500 • North Branch Raritan River • Somerset County, NJ

North Branch Raritan River Near Far Hills NJ on the North Branch Raritan River is currently at 14 cfs (Very Low — 9th percentile for this date) . Gage height: 2.15 ft.

Reading from 1 week ago

Downstream on North Branch Raritan River ↓

North Branch Raritan River Near Raritan NJ

CFS Discharge

2.15

Gage Height (ft)

Very Low

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	16	Today: 14 cfs
25th	Low threshold	22
50th (Median)	Normal (median)	30
75th	High threshold	47
95th	Very High threshold	74

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 29, 2026	15	—
May 28, 2026	16	—
May 27, 2026	18	—
May 26, 2026	23	—
May 25, 2026	30	—
May 24, 2026	54	—
May 23, 2026	17	—
May 22, 2026	19	—
May 21, 2026	16	—
May 20, 2026	15	—
May 19, 2026	16	—
May 18, 2026	15	—
May 17, 2026	16	—
May 16, 2026	16	—
May 15, 2026	17	—
Apr 21, 2026	29	—
Apr 20, 2026	31	—
Apr 19, 2026	31	—
Apr 18, 2026	33	—
Apr 17, 2026	33	—
Apr 16, 2026	34	—
Apr 15, 2026	36	—
Apr 14, 2026	34	—
Apr 13, 2026	33	—
Apr 12, 2026	32	—
Apr 11, 2026	33	—
Apr 10, 2026	33	—
Apr 9, 2026	33	—
Apr 8, 2026	34	—
Apr 7, 2026	35	—

Station Information

USGS Site No: 01398500
State: NJ
County: Somerset County
Coordinates: 40.7083, -74.6361
Drainage Area: 26 mi²
Datum (ft): 223.7
HUC Code: 020301050204

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 5.0 ft
Flood Stage: 6.0 ft
Moderate Flood: 7.0 ft
Major Flood: 8.0 ft

Currently 3.85 ft below flood stage.

Recent Extremes

Max discharge: 328 cfs

Mar 6, 2026
Min discharge: 8 cfs

Oct 2, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Passaic River Near Millington NJ
5.9 mi · 27 cfs

Normal
South Branch Raritan River at Four Bridges NJ
8.7 mi · 16 cfs

Very Low
Whippany River Near Morristown NJ
9.7 mi · 9 cfs

Very Low
Whippany River at Morristown NJ
11.6 mi · 26 cfs

Low
South Branch Raritan River Near High Bridge NJ
12.9 mi · 46 cfs

Low