Rock River at Newville, WI
USGS Site No: 05427530 • Rock River • Rock County, WI
Rock River at Newville, WI on the Rock River is currently at 2,100 cfs (Normal — 38th percentile for this date) . Gage height: 3.04 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 | 449 | |
| 25th | Low threshold | 1,650 | |
| 50th (Median) | Normal (median) | 2,540 | Today: 2,100 cfs |
| 75th | High threshold | 3,460 | |
| 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 | 2,380 | — |
| May 27, 2026 | 2,280 | — |
| May 26, 2026 | 1,980 | — |
| May 25, 2026 | 2,410 | — |
| May 24, 2026 | 2,980 | — |
| May 23, 2026 | 3,060 | — |
| May 22, 2026 | 3,210 | — |
| May 21, 2026 | 3,420 | — |
| May 20, 2026 | 3,630 | — |
| May 19, 2026 | 3,830 | — |
| May 18, 2026 | 3,960 | — |
| May 17, 2026 | 4,140 | — |
| May 16, 2026 | 4,390 | — |
| May 15, 2026 | 4,520 | — |
| Apr 20, 2026 | 8,330 | — |
| Apr 19, 2026 | 7,760 | — |
| Apr 18, 2026 | 6,900 | — |
| Apr 17, 2026 | 6,310 | — |
| Apr 16, 2026 | 5,530 | — |
| Apr 15, 2026 | 4,920 | — |
| Apr 14, 2026 | 4,630 | — |
| Apr 13, 2026 | 4,460 | — |
| Apr 12, 2026 | 4,270 | — |
| Apr 11, 2026 | 4,080 | — |
| Apr 10, 2026 | 4,060 | — |
| Apr 9, 2026 | 3,920 | — |
| Apr 8, 2026 | 3,740 | — |
| Apr 7, 2026 | 3,820 | — |
| Apr 6, 2026 | 3,670 | — |
| Apr 5, 2026 | 3,510 | — |
Station Information
- USGS Site No
- 05427530
- State
- WI
- County
- Rock County
- Coordinates
- 42.8300, -89.0214
- Drainage Area
- 2,560 mi²
- Datum (ft)
- 773.6
- HUC Code
- 07090002
Flood Stage Thresholds
- Action Stage
- 5.5 ft
- Flood Stage
- 6.5 ft
- Moderate Flood
- 7.5 ft
- Major Flood
- 8.0 ft
Currently 3.46 ft below flood stage.
Recent Extremes
- Max discharge
-
8,330 cfsApr 20, 2026
- Min discharge
-
350 cfsFeb 4, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
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Rock River at Fort Atkinson, WINormal11.5 mi · 1,710 cfs
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Yahara River @ Forton Street Bridge @ Stoughton,wiNormal11.8 mi · 294 cfs
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Rock River at Jefferson, WINormal15.8 mi · 373 cfs
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Yahara River @ Exchange St Bridge at Mc Farland,wiUnknown18.7 mi · 0 cfs
-
Yahara River at Mc Farland, WINormal18.9 mi · 151 cfs