Connecticut River at West Lebanon, NH

USGS Site No: 01144500 • Connecticut River • Grafton County, NH

Connecticut River at West Lebanon, NH on the Connecticut River is currently at 6,990 cfs (Normal — 66th percentile for this date) . Gage height: 7.10 ft.

Reading from

6,990
CFS Discharge
7.10
Gage Height (ft)
Normal
Flow Condition
Normal
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 1,740
25th Low threshold 3,000
50th (Median) Normal (median) 4,450
75th High threshold 8,410 Today: 6,990 cfs
95th Very High threshold 19,100

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.

51k 25k 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 7,750 —
May 27, 2026 10,500 —
May 26, 2026 12,000 —
May 25, 2026 9,220 —
May 24, 2026 6,440 —
May 23, 2026 5,750 —
May 22, 2026 5,110 —
May 21, 2026 8,410 —
May 20, 2026 7,680 —
May 19, 2026 10,300 —
May 18, 2026 15,200 —
May 17, 2026 21,800 —
May 16, 2026 26,200 —
May 15, 2026 27,600 —
Apr 21, 2026 20,500 —
Apr 20, 2026 24,300 —
Apr 19, 2026 21,800 —
Apr 18, 2026 24,900 —
Apr 17, 2026 24,700 —
Apr 16, 2026 19,300 —
Apr 15, 2026 19,400 —
Apr 14, 2026 15,600 —
Apr 13, 2026 15,300 —
Apr 12, 2026 15,500 —
Apr 11, 2026 15,800 —
Apr 10, 2026 14,800 —
Apr 9, 2026 14,500 —
Apr 8, 2026 14,400 —
Apr 7, 2026 14,600 —
Apr 6, 2026 16,400 —

Station Information

USGS Site No
01144500
State
NH
Coordinates
43.6462, -72.3123
Drainage Area
4,092 mi²
Datum (ft)
321.1
HUC Code
01080104
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
20.0 ft
Flood Stage
22.0 ft
Moderate Flood
26.0 ft
Major Flood
29.0 ft

Currently 14.90 ft below flood stage.

Recent Extremes

Max discharge
33,000 cfs
May 10, 2025
Min discharge
873 cfs
Oct 7, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges