How high is the Coginchaug River at Middlefield, CT right now?

The Coginchaug River at Middlefield, CT is currently flowing at 21 cubic feet per second with a gage height of 5.15 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Coginchaug River at Middlefield, CT normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 50th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Coginchaug River at Middlefield, CT on June 11?

The long-term median discharge for this date is 21 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 8 to 295 cfs.

Coginchaug River at Middlefield, CT

USGS Site No: 01192883 • Coginchaug River • Lower Connecticut River Valley Planning Region, CT

Coginchaug River at Middlefield, CT on the Coginchaug River is currently at 21 cfs (Normal — 50th percentile for this date) . Gage height: 5.15 ft.

Reading from 1 week ago

CFS Discharge

5.15

Gage Height (ft)

Normal

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	8
25th	Low threshold	12
50th (Median)	Normal (median)	21	Today: 21 cfs
75th	High threshold	49
95th	Very High threshold	295

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.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	28	5.34
May 27, 2026	46	5.62
May 26, 2026	64	5.82
May 25, 2026	55	5.73
May 24, 2026	26	5.21
May 23, 2026	12	4.83
May 22, 2026	13	4.86
May 21, 2026	13	4.89
May 20, 2026	14	4.93
May 19, 2026	16	4.98
May 18, 2026	18	5.04
May 17, 2026	19	5.10
May 16, 2026	20	5.13
May 15, 2026	21	5.14
Apr 21, 2026	25	5.25
Apr 20, 2026	25	5.27
Apr 19, 2026	26	5.28
Apr 18, 2026	26	5.30
Apr 17, 2026	26	5.30
Apr 16, 2026	28	5.33
Apr 15, 2026	27	5.33
Apr 14, 2026	26	5.30
Apr 13, 2026	26	5.29
Apr 12, 2026	28	5.34
Apr 11, 2026	29	5.37
Apr 10, 2026	30	5.40
Apr 9, 2026	33	5.44
Apr 8, 2026	37	5.50
Apr 7, 2026	42	5.57
Apr 6, 2026	47	5.63

Station Information

USGS Site No: 01192883
State: CT
County: Lower Connecticut River Valley Planning Region
Coordinates: 41.5202, -72.7065
Drainage Area: 30 mi²
Datum (ft): 134.2
HUC Code: 010802050602

View on USGS NWIS →

Recent Extremes

Max discharge: 427 cfs

Mar 17, 2026
Min discharge: 1 cfs

Aug 19, 2025

Computed from the local daily-values archive.

Nearby Gauges

Mattabesset River at Route 372 at East Berlin
6.1 mi · 19 cfs

Normal
Muddy River Near East Wallingford, CT
7.0 mi · 1 cfs

Normal
Quinnipiac River at Wallingford, CT
8.5 mi · 105 cfs

Normal
Honeypot Brook at Creamery Road at Cheshire, CT
9.5 mi · 2 cfs

Very Low
Quinnipiac River at Southington, CT
10.8 mi · 13 cfs

Low