Copper Slough at Champaign, IL
USGS Site No: 05590050 • Copper Slough • Champaign County, IL
Copper Slough at Champaign, IL on the Copper Slough is currently at 2 cfs (Very Low — 8th percentile for this date) . Gage height: 9.79 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 | 2 | Today: 2 cfs |
| 25th | Low threshold | 4 | |
| 50th (Median) | Normal (median) | 6 | |
| 75th | High threshold | 12 | |
| 95th | Very High threshold | 78 |
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 | 2 | 9.82 |
| May 27, 2026 | 4 | 9.88 |
| May 26, 2026 | 2 | 9.82 |
| May 25, 2026 | 2 | 9.83 |
| May 24, 2026 | 3 | 9.84 |
| May 23, 2026 | 3 | 9.85 |
| May 22, 2026 | 3 | 9.86 |
| May 21, 2026 | 4 | 9.88 |
| May 20, 2026 | 5 | 9.92 |
| May 19, 2026 | 6 | 9.97 |
| May 18, 2026 | 9 | 10.02 |
| May 17, 2026 | 4 | 9.92 |
| May 16, 2026 | 6 | 9.95 |
| May 15, 2026 | 11 | 10.05 |
| Apr 20, 2026 | 7 | 9.99 |
| Apr 19, 2026 | 12 | 10.10 |
| Apr 18, 2026 | 35 | 10.44 |
| Apr 17, 2026 | 9 | 10.03 |
| Apr 16, 2026 | 24 | 10.27 |
| Apr 15, 2026 | 5 | 9.93 |
| Apr 14, 2026 | 6 | 9.97 |
| Apr 13, 2026 | 4 | 9.90 |
| Apr 12, 2026 | 4 | 9.91 |
| Apr 11, 2026 | 5 | 9.93 |
| Apr 10, 2026 | 5 | 9.94 |
| Apr 9, 2026 | 6 | 9.96 |
| Apr 8, 2026 | 6 | 9.98 |
| Apr 7, 2026 | 7 | 10.00 |
| Apr 6, 2026 | 9 | 10.06 |
| Apr 5, 2026 | 14 | 10.16 |
Station Information
- USGS Site No
- 05590050
- State
- IL
- County
- Champaign County
- Coordinates
- 40.0972, -88.3073
- Drainage Area
- 8 mi²
- Datum (ft)
- 694.8
- HUC Code
- 07140201
Recent Extremes
- Max discharge
-
196 cfsJun 16, 2025
- Min discharge
-
1 cfsNov 3, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Boneyard Creek at Urbana, ILNormal4.4 mi · 2 cfs
-
Boneyard Creek at Lincoln Ave at Urbana, ILNormal4.7 mi · 3 cfs
-
Saline Branch Above 1700e Near Urbana, ILVery Low8.5 mi · 36 cfs
-
Sangamon River at Fisher, ILLow14.8 mi · 67 cfs
-
Salt Fork Near St. Joseph, ILVery Low14.9 mi · 18 cfs