How high is the Naugatuck River at Thomaston, CT right now?

The Naugatuck River at Thomaston, CT is currently flowing at 74 cubic feet per second with a gage height of 2.04 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Naugatuck River at Thomaston, CT normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 47th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Naugatuck River at Thomaston, CT on June 11?

The long-term median discharge for this date is 77 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 44 to 741 cfs.

Where is the Naugatuck River at Thomaston, CT stream gauge located?

The Naugatuck River at Thomaston, CT stream gauge is operated by the USGS in Naugatuck Valley Planning Region, CT on the Naugatuck River. USGS site number 01206900 (coordinates 41.6736, -73.0695).

Naugatuck River at Thomaston, CT

USGS Site No: 01206900 • Naugatuck River • Naugatuck Valley Planning Region, CT

Naugatuck River at Thomaston, CT on the Naugatuck River is currently at 74 cfs (Normal — 47th percentile for this date) . Gage height: 2.04 ft.

Reading from 1 week ago

Downstream on Naugatuck River ↓

Naugatuck River at Waterbury, CT

CFS Discharge

2.04

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	44
25th	Low threshold	52
50th (Median)	Normal (median)	77	Today: 74 cfs
75th	High threshold	164
95th	Very High threshold	741

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	95	2.14
May 27, 2026	119	2.24
May 26, 2026	178	2.43
May 25, 2026	291	2.70
May 24, 2026	194	2.42
May 23, 2026	58	1.95
May 22, 2026	61	1.97
May 21, 2026	65	2.00
May 20, 2026	71	2.03
May 19, 2026	76	2.05
May 18, 2026	83	2.09
May 17, 2026	100	2.16
May 16, 2026	119	2.24
May 15, 2026	169	2.40
Apr 21, 2026	187	2.46
Apr 20, 2026	222	2.55
Apr 19, 2026	236	2.58
Apr 18, 2026	301	2.72
Apr 17, 2026	407	2.92
Apr 16, 2026	588	3.19
Apr 15, 2026	150	2.35
Apr 14, 2026	125	2.26
Apr 13, 2026	128	2.28
Apr 12, 2026	136	2.30
Apr 11, 2026	148	2.34
Apr 10, 2026	153	2.36
Apr 9, 2026	162	2.39
Apr 8, 2026	178	2.43
Apr 7, 2026	198	2.49
Apr 6, 2026	238	2.59

Station Information

USGS Site No: 01206900
State: CT
County: Naugatuck Valley Planning Region
Coordinates: 41.6736, -73.0695
Drainage Area: 100 mi²
Datum (ft): 354.4
HUC Code: 011000051105

View on USGS NWIS →

Recent Extremes

Max discharge: 1,750 cfs

May 10, 2025
Min discharge: 10 cfs

Aug 19, 2025

Computed from the local daily-values archive.

Nearby Gauges

Naugatuck River at Waterbury, CT
8.1 mi · 135 cfs

Normal
Nonewaug River at Minortown, CT
8.7 mi · 6 cfs

Low
Bunnell Brook Near Burlington, CT
9.5 mi · 5 cfs

Normal
Quinnipiac River at Southington, CT
10.8 mi · 13 cfs

Low
Farmington River at Unionville, CT
11.0 mi · 259 cfs

Very Low