Carmans River at Yaphank NY

USGS Site No: 01305000 • Carmans River • Suffolk County, NY

Carmans River at Yaphank NY on the Carmans River is currently at 15 cfs (Very Low — 9th percentile for this date) . Gage height: 1.05 ft.

Reading from

15
CFS Discharge
1.05
Gage Height (ft)
Very Low
Flow Condition
N/A
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: 15 cfs
25th Low threshold 21
50th (Median) Normal (median) 24
75th High threshold 30
95th Very High threshold 40

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.

52 26 0 cfs Mar 31 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 15 —
May 27, 2026 16 —
May 26, 2026 17 —
May 25, 2026 18 —
May 24, 2026 17 —
May 23, 2026 15 —
May 22, 2026 15 —
May 21, 2026 16 —
May 20, 2026 15 —
May 19, 2026 15 —
May 18, 2026 15 —
May 17, 2026 15 —
May 16, 2026 15 —
May 15, 2026 15 —
Apr 21, 2026 16 —
Apr 20, 2026 16 —
Apr 19, 2026 16 —
Apr 18, 2026 16 —
Apr 17, 2026 17 —
Apr 16, 2026 17 —
Apr 15, 2026 17 —
Apr 14, 2026 16 —
Apr 12, 2026 16 —
Apr 7, 2026 17 —
Apr 5, 2026 17 —
Apr 4, 2026 17 —
Apr 3, 2026 17 —
Apr 2, 2026 17 —
Apr 1, 2026 17 —
Mar 31, 2026 17 —

Station Information

USGS Site No
01305000
State
NY
County
Suffolk County
Coordinates
40.8302, -72.9061
Drainage Area
73 mi²
Datum (ft)
18.0
HUC Code
02030202
View on USGS NWIS →

Recent Extremes

Max discharge
30 cfs
Aug 1, 2025
Min discharge
13 cfs
Feb 15, 2026

Computed from the local daily-values archive.

Nearby Gauges

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