Connecticut River at I-391 Bridge at Holyoke, MA

USGS Site No: 01172010Connecticut River • Hampden County, MA

Connecticut River at I-391 Bridge at Holyoke, MA on the Connecticut River is currently at 10,600 cfs (Normal — 54th percentile for this date) . Gage height: 7.72 ft.

Reading from

10,600
CFS Discharge
7.72
Gage Height (ft)
Normal
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 4,550
25th Low threshold 7,460
50th (Median) Normal (median) 9,780
75th High threshold 15,100 Today: 10,600 cfs
95th Very High threshold 45,000

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.

98k 49k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 16,800
May 27, 2026 19,000
May 26, 2026 16,900
May 25, 2026 10,500
May 24, 2026 9,080
May 23, 2026 9,130
May 22, 2026 12,200
May 21, 2026 15,900
May 20, 2026 17,000
May 19, 2026 22,300
May 18, 2026 33,800
May 17, 2026 37,500
May 16, 2026 38,000
May 15, 2026 22,000
Apr 20, 2026 32,100
Apr 19, 2026 32,100
Apr 18, 2026 31,700
Apr 17, 2026 30,300
Apr 16, 2026 28,000
Apr 15, 2026 22,400
Apr 14, 2026 22,300
Apr 13, 2026 23,300
Apr 12, 2026 23,700
Apr 11, 2026 23,500
Apr 10, 2026 21,200
Apr 9, 2026 24,500
Apr 8, 2026 27,100
Apr 7, 2026 26,800
Apr 6, 2026 31,900
Apr 5, 2026 30,200

Station Information

USGS Site No
01172010
State
MA
Coordinates
42.1915, -72.6093
Drainage Area
8,332 mi²
Datum (ft)
63.0
HUC Code
010802010702
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
25.5 ft
Flood Stage
26.5 ft
Moderate Flood
29.5 ft
Major Flood
32.5 ft

Currently 18.78 ft below flood stage.

Recent Extremes

Max discharge
74,700 cfs
May 11, 2025
Min discharge
1,400 cfs
Oct 8, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges