Peconic River at Riverhead NY

USGS Site No: 01304500 • Peconic River • Suffolk County, NY

Peconic River at Riverhead NY on the Peconic River is currently at 20 cfs (Very Low — 10th percentile for this date) . Gage height: 0.34 ft.

Reading from

20
CFS Discharge
0.34
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 21 Today: 20 cfs
25th Low threshold 28
50th (Median) Normal (median) 36
75th High threshold 51
95th Very High threshold 81

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.

114 57 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 22 —
May 27, 2026 24 —
May 26, 2026 25 —
May 25, 2026 25 —
May 24, 2026 22 —
May 23, 2026 18 —
May 22, 2026 18 —
May 21, 2026 19 —
May 20, 2026 16 —
May 19, 2026 16 —
May 18, 2026 17 —
May 17, 2026 17 —
May 16, 2026 17 —
May 15, 2026 18 —
Apr 21, 2026 18 —
Apr 20, 2026 18 —
Apr 19, 2026 18 —
Apr 18, 2026 18 —
Apr 17, 2026 19 —
Apr 16, 2026 19 —
Apr 15, 2026 19 —
Apr 14, 2026 20 —
Apr 13, 2026 20 —
Apr 12, 2026 20 —
Apr 11, 2026 20 —
Apr 10, 2026 20 —
Apr 9, 2026 21 —
Apr 8, 2026 22 —
Apr 7, 2026 22 —
Apr 6, 2026 22 —

Station Information

USGS Site No
01304500
State
NY
County
Suffolk County
Coordinates
40.9137, -72.6869
Drainage Area
75 mi²
Datum (ft)
6.5
HUC Code
02030202
View on USGS NWIS →

Recent Extremes

Max discharge
41 cfs
May 10, 2025
Min discharge
12 cfs
Oct 11, 2025

Computed from the local daily-values archive.

Nearby Gauges

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