Lamprey River Near Newmarket, NH
USGS Site No: 01073500 • Lamprey River • Strafford County, NH
Lamprey River Near Newmarket, NH on the Lamprey River is currently at 112 cfs (Normal — 43th percentile for this date) . Gage height: 1.68 ft.
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 | 29 | |
| 25th | Low threshold | 56 | |
| 50th (Median) | Normal (median) | 134 | Today: 112 cfs |
| 75th | High threshold | 250 | |
| 95th | Very High threshold | 592 |
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 | 153 | — |
| May 27, 2026 | 202 | — |
| May 26, 2026 | 225 | — |
| May 25, 2026 | 153 | — |
| May 24, 2026 | 75 | — |
| May 23, 2026 | 82 | — |
| May 22, 2026 | 93 | — |
| May 21, 2026 | 110 | — |
| May 20, 2026 | 134 | — |
| May 19, 2026 | 162 | — |
| May 18, 2026 | 201 | — |
| May 17, 2026 | 253 | — |
| May 16, 2026 | 282 | — |
| May 15, 2026 | 235 | — |
| Apr 20, 2026 | 195 | — |
| Apr 19, 2026 | 202 | — |
| Apr 18, 2026 | 212 | — |
| Apr 17, 2026 | 229 | — |
| Apr 16, 2026 | 240 | — |
| Apr 15, 2026 | 245 | — |
| Apr 14, 2026 | 211 | — |
| Apr 13, 2026 | 211 | — |
| Apr 12, 2026 | 226 | — |
| Apr 11, 2026 | 260 | — |
| Apr 10, 2026 | 283 | — |
| Apr 9, 2026 | 306 | — |
| Apr 8, 2026 | 343 | — |
| Apr 7, 2026 | 377 | — |
| Apr 6, 2026 | 424 | — |
| Apr 5, 2026 | 464 | — |
Station Information
- USGS Site No
- 01073500
- State
- NH
- County
- Strafford County
- Coordinates
- 43.1026, -70.9526
- Drainage Area
- 185 mi²
- Datum (ft)
- 37.6
- HUC Code
- 01060003
Flood Stage Thresholds
- Action Stage
- 7.0 ft
- Flood Stage
- 8.0 ft
- Moderate Flood
- 12.0 ft
- Major Flood
- 16.0 ft
Currently 6.32 ft below flood stage.
Recent Extremes
- Max discharge
-
1,990 cfsMay 11, 2025
- Min discharge
-
2 cfsAug 28, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
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Oyster River Near Durham, NHNormal3.2 mi · 8 cfs
-
Winnicut River at Greenland, near Portsmouth, NHNormal7.0 mi · 21 cfs
-
Isinglass River at Rochester Neck Road, near Dover, NHLow9.1 mi · 42 cfs
-
Exeter River at Haigh Road, Near Brentwood, NHNormal9.2 mi · 56 cfs
-
Cocheco River Near Rochester, NHNormal11.5 mi · 74 cfs