MEDIAN FLOW RATE · 1 YEAR
1cfs 86.8% vs avg
Optimal band: 3–5 cfs
PERIOD HIGH
1,286cfs
PERIOD LOW
1cfs
RUNNABLE
18%
last 1 year in band
Precipitation History
Your History · Onion Ck at US Hwy 183, Austin, TX
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Station Location
30.1780, -97.6886Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-05 00:00 UTC
Site #08159000·USGS
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