Still River at Robertsville, CT
USGS Site No: 01186500 • Still River • Northwest Hills Planning Region, CT
Still River at Robertsville, CT on the Still River is currently at 66 cfs (Normal — 46th percentile for this date) . Gage height: 1.98 ft.
Reading from
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 | 34 | |
| 25th | Low threshold | 48 | |
| 50th (Median) | Normal (median) | 70 | Today: 66 cfs |
| 75th | High threshold | 146 | |
| 95th | Very High threshold | 418 |
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 | 96 | 2.19 |
| May 27, 2026 | 118 | 2.33 |
| May 26, 2026 | 170 | 2.58 |
| May 25, 2026 | 234 | 2.84 |
| May 24, 2026 | 149 | 2.42 |
| May 23, 2026 | 46 | 1.80 |
| May 22, 2026 | 44 | 1.78 |
| May 21, 2026 | 48 | 1.81 |
| May 20, 2026 | 55 | 1.88 |
| May 19, 2026 | 67 | 1.99 |
| May 18, 2026 | 74 | 2.04 |
| May 17, 2026 | 80 | 2.09 |
| May 16, 2026 | 92 | 2.17 |
| May 15, 2026 | 109 | 2.28 |
| Apr 21, 2026 | 164 | 2.56 |
| Apr 20, 2026 | 203 | 2.72 |
| Apr 19, 2026 | 209 | 2.74 |
| Apr 18, 2026 | 247 | 2.88 |
| Apr 17, 2026 | 306 | 3.07 |
| Apr 16, 2026 | 289 | 3.01 |
| Apr 15, 2026 | 114 | 2.31 |
| Apr 14, 2026 | 96 | 2.20 |
| Apr 13, 2026 | 94 | 2.18 |
| Apr 12, 2026 | 97 | 2.20 |
| Apr 11, 2026 | 107 | 2.27 |
| Apr 10, 2026 | 117 | 2.32 |
| Apr 9, 2026 | 126 | 2.38 |
| Apr 8, 2026 | 135 | 2.42 |
| Apr 7, 2026 | 153 | 2.51 |
| Apr 6, 2026 | 178 | 2.62 |
Station Information
- USGS Site No
- 01186500
- State
- CT
- Coordinates
- 41.9679, -73.0334
- Drainage Area
- 85 mi²
- Datum (ft)
- 509.6
- HUC Code
- 010802070103
Recent Extremes
- Max discharge
-
1,760 cfsMay 6, 2025
- Min discharge
-
8 cfsSep 23, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
West Branch Farmington River at Riverton, CTLow0.9 mi · 97 cfs
-
Hubbard River Near West Hartland, CTNormal6.8 mi · 8 cfs
-
Nepaug River near Nepaug, Ct.Normal10.7 mi · 15 cfs
-
Bunnell Brook Near Burlington, CTNormal13.1 mi · 5 cfs
-
Farmington River at Tariffville, CTVery Low14.7 mi · 430 cfs