Naugatuck River at Waterbury, CT
USGS Site No: 01208171 • Naugatuck River • Naugatuck Valley Planning Region, CT
Naugatuck River at Waterbury, CT on the Naugatuck River is currently at 135 cfs (Normal — 53th percentile for this date) . Gage height: 7.06 ft.
Reading from
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 | 0 | |
| 25th | Low threshold | 40 | |
| 50th (Median) | Normal (median) | 80 | |
| 75th | High threshold | 499 | Today: 135 cfs |
| 95th | Very High threshold | 0 |
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.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 174 | — |
| May 27, 2026 | 221 | — |
| May 26, 2026 | 319 | — |
| May 25, 2026 | 455 | — |
| May 24, 2026 | 314 | — |
| May 23, 2026 | 108 | — |
| May 22, 2026 | 109 | — |
| May 21, 2026 | 120 | — |
| May 20, 2026 | 133 | — |
| May 19, 2026 | 145 | — |
| May 18, 2026 | 147 | — |
| May 17, 2026 | 171 | — |
| May 16, 2026 | 203 | — |
| May 15, 2026 | 272 | — |
| Apr 21, 2026 | 270 | — |
| Apr 20, 2026 | 308 | — |
| Apr 19, 2026 | 322 | — |
| Apr 18, 2026 | 386 | — |
| Apr 17, 2026 | 470 | — |
| Apr 16, 2026 | 546 | — |
| Apr 15, 2026 | 238 | — |
| Apr 14, 2026 | 215 | — |
| Apr 13, 2026 | 218 | — |
| Apr 12, 2026 | 225 | — |
| Apr 11, 2026 | 246 | — |
| Apr 10, 2026 | 251 | — |
| Apr 9, 2026 | 264 | — |
| Apr 8, 2026 | 287 | — |
| Apr 7, 2026 | 316 | — |
| Apr 6, 2026 | 370 | — |
Station Information
- USGS Site No
- 01208171
- State
- CT
- Coordinates
- 41.5569, -73.0543
- Drainage Area
- 174 mi²
- Datum (ft)
- 246.3
- HUC Code
- 011000051205
Recent Extremes
- Max discharge
-
2,320 cfsMay 7, 2025
- Min discharge
-
19 cfsAug 19, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Hop Brook Near Naugatuck, CTVery High3.5 mi · 10 cfs
-
Nonewaug River at Minortown, CTNormal6.5 mi · 6 cfs
-
Naugatuck River at Beacon Falls, CTNormal7.9 mi · 213 cfs
-
Naugatuck River at Thomaston, CTNormal8.1 mi · 74 cfs
-
Weekeepeemee River at Hotchkissville, CTNormal8.3 mi · 13 cfs