Unadilla River at Rockdale NY
USGS Site No: 01502500 • Unadilla River • Chenango County, NY
Unadilla River at Rockdale NY on the Unadilla River is currently at 394 cfs (Normal — 49th percentile for this date) . Gage height: 4.71 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 | 171 | |
| 25th | Low threshold | 215 | |
| 50th (Median) | Normal (median) | 398 | Today: 394 cfs |
| 75th | High threshold | 615 | |
| 95th | Very High threshold | 1,690 |
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 | 443 | — |
| May 27, 2026 | 546 | — |
| May 26, 2026 | 726 | — |
| May 25, 2026 | 692 | — |
| May 24, 2026 | 523 | — |
| May 23, 2026 | 408 | — |
| May 22, 2026 | 408 | — |
| May 21, 2026 | 436 | — |
| May 20, 2026 | 468 | — |
| May 19, 2026 | 509 | — |
| May 18, 2026 | 565 | — |
| May 17, 2026 | 648 | — |
| May 16, 2026 | 739 | — |
| May 15, 2026 | 851 | — |
| Apr 21, 2026 | 809 | — |
| Apr 20, 2026 | 928 | — |
| Apr 19, 2026 | 839 | — |
| Apr 18, 2026 | 846 | — |
| Apr 17, 2026 | 948 | — |
| Apr 16, 2026 | 1,050 | — |
| Apr 15, 2026 | 1,020 | — |
| Apr 14, 2026 | 1,070 | — |
| Apr 13, 2026 | 1,160 | — |
| Apr 12, 2026 | 1,320 | — |
| Apr 11, 2026 | 1,480 | — |
| Apr 10, 2026 | 1,520 | — |
| Apr 9, 2026 | 1,740 | — |
| Apr 8, 2026 | 2,040 | — |
| Apr 7, 2026 | 2,520 | — |
| Apr 6, 2026 | 3,240 | — |
Station Information
- USGS Site No
- 01502500
- State
- NY
- County
- Chenango County
- Coordinates
- 42.3780, -75.4061
- Drainage Area
- 520 mi²
- Datum (ft)
- 992.0
- HUC Code
- 020501010910
Flood Stage Thresholds
- Action Stage
- 8.0 ft
- Flood Stage
- 11.0 ft
- Moderate Flood
- 12.0 ft
- Major Flood
- 13.0 ft
Currently 6.29 ft below flood stage.
Recent Extremes
- Max discharge
-
6,770 cfsApr 2, 2026
- Min discharge
-
62 cfsSep 22, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Trout Creek Near Trout Creek NYNormal15.5 mi · 21 cfs
-
West Brook at Austin Lincoln Park at Walton NYNormal19.8 mi · 19 cfs
-
West Branch Delaware River at Walton NYNormal20.0 mi · 269 cfs
-
East Brook East Of Walton NYNormal20.3 mi · 21 cfs
-
West Branch Delaware River at Stilesville NYNormal20.9 mi · 452 cfs