Ausable River Near Au Sable Forks NY
USGS Site No: 04275500 • Ausable River • Clinton County, NY
Ausable River Near Au Sable Forks NY on the Ausable River is currently at 606 cfs (Normal — 64th percentile for this date) . Gage height: 2.12 ft. This station is at or above flood stage.
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 | 208 | |
| 25th | Low threshold | 260 | |
| 50th (Median) | Normal (median) | 400 | |
| 75th | High threshold | 773 | Today: 606 cfs |
| 95th | Very High threshold | 2,200 |
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 | 721 | — |
| May 27, 2026 | 998 | — |
| May 26, 2026 | 1,510 | — |
| May 25, 2026 | 1,430 | — |
| May 24, 2026 | 667 | — |
| May 23, 2026 | 544 | — |
| May 22, 2026 | 637 | — |
| May 21, 2026 | 738 | — |
| May 20, 2026 | 883 | — |
| May 19, 2026 | 1,080 | — |
| May 18, 2026 | 1,240 | — |
| May 17, 2026 | 1,470 | — |
| May 16, 2026 | 2,480 | — |
| May 15, 2026 | 3,380 | — |
| Apr 21, 2026 | 1,190 | — |
| Apr 20, 2026 | 1,590 | — |
| Apr 19, 2026 | 2,120 | — |
| Apr 18, 2026 | 2,840 | — |
| Apr 17, 2026 | 5,050 | — |
| Apr 16, 2026 | 3,250 | — |
| Apr 15, 2026 | 4,400 | — |
| Apr 14, 2026 | 2,470 | — |
| Apr 13, 2026 | 1,110 | — |
| Apr 12, 2026 | 1,100 | — |
| Apr 11, 2026 | 1,160 | — |
| Apr 10, 2026 | 870 | — |
| Apr 9, 2026 | 946 | — |
| Apr 8, 2026 | 1,040 | — |
| Apr 7, 2026 | 1,410 | — |
| Apr 6, 2026 | 2,140 | — |
Station Information
- USGS Site No
- 04275500
- State
- NY
- County
- Clinton County
- Coordinates
- 44.4517, -73.6434
- Drainage Area
- 446 mi²
- Datum (ft)
- 505.4
- HUC Code
- 043001040301
Flood Stage Thresholds
- Action Stage
- 7.0 ft
Recent Extremes
- Max discharge
-
8,020 cfsMar 12, 2026
- Min discharge
-
106 cfsAug 24, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
East Branch Ausable River at Au Sable Forks NYNormal2.1 mi · 247 cfs
-
White Brook Near Wilmington NYVery High11.3 mi · 3 cfs
-
Little Ausable River Near Valcour NYNormal12.2 mi · 46 cfs
-
Boquet River at Willsboro NYNormal13.9 mi · 264 cfs
-
Salmon River at South Plattsburgh NYNormal14.9 mi · 52 cfs