Arkansas River at Lamar, CO
USGS Site No: 07133000 • Arkansas River • Prowers County, CO
Arkansas River at Lamar, CO on the Arkansas River is currently at 22 cfs (Normal — 74th percentile for this date) . Gage height: 5.53 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 | 5 | |
| 25th | Low threshold | 7 | |
| 50th (Median) | Normal (median) | 12 | |
| 75th | High threshold | 22 | Today: 22 cfs |
| 95th | Very High threshold | 74 |
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 | 28 | — |
| May 27, 2026 | 27 | — |
| May 26, 2026 | 30 | — |
| May 25, 2026 | 27 | — |
| May 24, 2026 | 26 | — |
| May 23, 2026 | 20 | — |
| May 22, 2026 | 20 | — |
| May 21, 2026 | 23 | — |
| May 20, 2026 | 22 | — |
| May 19, 2026 | 19 | — |
| May 18, 2026 | 20 | — |
| May 17, 2026 | 20 | — |
| May 16, 2026 | 20 | — |
| May 15, 2026 | 21 | — |
| Apr 21, 2026 | 0 | — |
| Apr 20, 2026 | 5 | — |
| Apr 19, 2026 | 8 | — |
| Apr 18, 2026 | 9 | — |
| Apr 17, 2026 | 8 | — |
| Apr 16, 2026 | 9 | — |
| Apr 15, 2026 | 8 | — |
| Apr 14, 2026 | 5 | — |
| Apr 13, 2026 | 4 | — |
| Apr 12, 2026 | 5 | — |
| Apr 11, 2026 | 5 | — |
| Apr 10, 2026 | 6 | — |
| Apr 9, 2026 | 7 | — |
| Apr 8, 2026 | 8 | — |
| Apr 7, 2026 | 8 | — |
| Apr 6, 2026 | 9 | — |
Station Information
- USGS Site No
- 07133000
- State
- CO
- County
- Prowers County
- Coordinates
- 38.1058, -102.6182
- Drainage Area
- 19,743 mi²
- Datum (ft)
- 3,600.1
- HUC Code
- 110200091406
Flood Stage Thresholds
- Action Stage
- 9.0 ft
- Flood Stage
- 11.0 ft
- Moderate Flood
- 13.0 ft
- Major Flood
- 15.0 ft
Currently 5.47 ft below flood stage.
Recent Extremes
- Max discharge
-
515 cfsApr 22, 2025
- Min discharge
-
0 cfsApr 21, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Arkansas River Near Granada, Co.Normal16.7 mi · 13 cfs
-
Arkansas River Below John Martin Reservoir, Co.Normal17.3 mi · 124 cfs
-
Wild Horse Creek Above Holly, COLow26.3 mi · 0 cfs
-
Arkansas River at Holly, Co.Normal27.5 mi · 48 cfs
-
Frontier Ditch near Coolidge, KSVery High31.8 mi · 29 cfs