Blanco Rv at Halifax Rch near Kyle, TX

USGS Site No: 08171290Blanco River • Hays County, TX

Blanco Rv at Halifax Rch near Kyle, TX on the Blanco River is currently at 9 cfs (Low — 20th percentile for this date) . Gage height: 0.88 ft.

Reading from

9
CFS Discharge
0.88
Gage Height (ft)
Low
Flow Condition
N/A
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 6
25th Low threshold 10 Today: 9 cfs
50th (Median) Normal (median) 27
75th High threshold 130
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.

29 15 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 10 0.91
May 27, 2026 10 0.91
May 26, 2026 6 0.83
May 25, 2026 8 0.86
May 24, 2026 10 0.90
May 23, 2026 13 0.94
May 22, 2026 16 0.97
May 21, 2026 7 0.84
May 20, 2026 6 0.83
May 19, 2026 3 0.74
May 18, 2026 3 0.75
May 17, 2026 3 0.75
May 16, 2026 3 0.75
May 15, 2026 4 0.77
Apr 20, 2026 9 0.87
Apr 19, 2026 5 0.78
Apr 18, 2026 3 0.75
Apr 17, 2026 4 0.76
Apr 16, 2026 5 0.79
Apr 15, 2026 6 0.82
Apr 14, 2026 8 0.86
Apr 13, 2026 8 0.85
Apr 12, 2026 7 0.85
Apr 11, 2026 9 0.88
Apr 10, 2026 5 0.78
Apr 9, 2026 3 0.75
Apr 8, 2026 4 0.76
Apr 7, 2026 4 0.78
Apr 6, 2026 5 0.80
Apr 5, 2026 7 0.84

Station Information

USGS Site No
08171290
State
TX
County
Hays County
Coordinates
30.0056, -97.9525
Drainage Area
391 mi²
Datum (ft)
673.7
HUC Code
12100203
View on USGS NWIS →

Recent Extremes

Max discharge
366 cfs
Jun 12, 2025
Min discharge
1 cfs
May 25, 2025

Computed from the local daily-values archive.