Winnicut River at Greenland, near Portsmouth, NH

USGS Site No: 01073785 • Winnicut River • Rockingham County, NH

Winnicut River at Greenland, near Portsmouth, NH on the Winnicut River is currently at 21 cfs (Normal — 55th percentile for this date) . Gage height: 4.62 ft.

Reading from

21
CFS Discharge
4.62
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 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 2
25th Low threshold 5
50th (Median) Normal (median) 15
75th High threshold 45 Today: 21 cfs
95th Very High threshold 85

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.

896 448 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 29 —
May 27, 2026 42 —
May 26, 2026 63 —
May 25, 2026 81 —
May 24, 2026 9 —
May 23, 2026 9 —
May 22, 2026 11 —
May 21, 2026 15 —
May 20, 2026 21 —
May 19, 2026 18 —
May 18, 2026 21 —
May 17, 2026 25 —
May 16, 2026 33 —
May 15, 2026 42 —
Apr 21, 2026 15 —
Apr 20, 2026 19 —
Apr 19, 2026 19 —
Apr 18, 2026 21 —
Apr 17, 2026 28 —
Apr 16, 2026 19 —
Apr 15, 2026 23 —
Apr 14, 2026 18 —
Apr 13, 2026 15 —
Apr 12, 2026 15 —
Apr 11, 2026 17 —
Apr 10, 2026 19 —
Apr 9, 2026 21 —
Apr 8, 2026 24 —
Apr 7, 2026 27 —
Apr 6, 2026 32 —

Station Information

USGS Site No
01073785
State
NH
County
Rockingham County
Coordinates
43.0358, -70.8475
Drainage Area
14 mi²
Datum (ft)
5.3
HUC Code
01060003
View on USGS NWIS →

Recent Extremes

Max discharge
210 cfs
May 10, 2025
Min discharge
0 cfs
Aug 27, 2025

Computed from the local daily-values archive.

Nearby Gauges

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