How high is the Frio Rv near Derby, TX right now?

The Frio Rv near Derby, TX is currently flowing at 0 cubic feet per second with a gage height of 0.45 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Frio Rv near Derby, TX normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 26th percentile compared to the long-term historical record at this gauge.

Is the Frio Rv near Derby, TX at flood stage?

No — the gage height is 5.55 feet below the NWS flood-stage threshold of 6.0 feet.

What is the historical median flow for the Frio Rv near Derby, TX on June 11?

The long-term median discharge for this date is 3 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 0 to 218 cfs.

Where is the Frio Rv near Derby, TX stream gauge located?

The Frio Rv near Derby, TX stream gauge is operated by the USGS in Frio County, TX on the Frio River. USGS site number 08205500 (coordinates 28.7366, -99.1448).

Frio Rv near Derby, TX

USGS Site No: 08205500 • Frio River • Frio County, TX

Frio Rv near Derby, TX on the Frio River is currently at 0 cfs (Normal — 26th percentile for this date) . Gage height: 0.45 ft.

Reading from 1 week ago

↑ Upstream on Frio River

Frio Rv below Dry Frio Rv near Uvalde, TX

Downstream on Frio River ↓

Frio Rv at Tilden, TX

CFS Discharge

0.45

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

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	0
25th	Low threshold	0
50th (Median)	Normal (median)	3	Today: 0 cfs
75th	High threshold	33
95th	Very High threshold	218

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.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	0	-0.01
May 27, 2026	0	-0.44
May 26, 2026	0	-0.58
May 25, 2026	0	-0.55
May 24, 2026	0	-0.51
May 23, 2026	0	-0.48
May 22, 2026	0	-0.47
May 21, 2026	0	-0.43
May 20, 2026	0	-0.48
May 19, 2026	0	-0.68
May 18, 2026	0	-0.61
May 17, 2026	0	-0.54
May 16, 2026	0	-0.48
May 15, 2026	0	-0.40
Apr 20, 2026	0	-0.93
Apr 19, 2026	0	-0.93
Apr 18, 2026	0	-0.93
Apr 17, 2026	0	-0.93
Apr 16, 2026	0	-0.93
Apr 15, 2026	0	-0.93
Apr 14, 2026	0	-0.93
Apr 13, 2026	0	-0.93
Apr 12, 2026	0	-0.93
Apr 11, 2026	0	-0.93
Apr 10, 2026	0	-0.93
Apr 9, 2026	0	-0.93
Apr 8, 2026	0	-0.93
Apr 7, 2026	0	-0.93
Apr 6, 2026	0	-0.93
Apr 5, 2026	0	-0.93

Station Information

USGS Site No: 08205500
State: TX
County: Frio County
Coordinates: 28.7366, -99.1448
Drainage Area: 3,429 mi²
Datum (ft): 449.1
HUC Code: 12110106

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 6.0 ft
Flood Stage: 6.0 ft
Moderate Flood: 7.0 ft
Major Flood: 17.0 ft

Currently 5.55 ft below flood stage.

Recent Extremes

Max discharge: 3,070 cfs

Jul 17, 2025
Min discharge: 0 cfs

May 28, 2026
Days at flood stage: 1

Computed from the local daily-values archive.

Nearby Gauges

Nueces Rv at Cotulla, TX
22.2 mi · 3 cfs

Normal
Nueces Rv near Asherton, TX
36.5 mi · 2 cfs

Normal
San Miguel Ck near Tilden, TX
37.7 mi · 97 cfs

High
Frio Rv at Tilden, TX
40.7 mi · 152 cfs

High
Hondo Ck at Sh 173 near Hondo, TX
44.2 mi · 0 cfs

Normal