USGS · 08158922

WILLIAMSON CK RIVER

USGS · 08158922LIVE

Williamson Ck at Brush Cntry Blvd, Oak Hill, TX

AUSTIN, TX30.2263°N, -97.8414°W Updated 16 hr ago

FLOW RATE

0cfs

AIR TEMP

92°F

WIND

11mph SSW

FISH INDEX

50SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

0cfs NaN% vs avg

Optimal band: 3–3 cfs

PERIOD HIGH

102cfs

PERIOD LOW

1cfs

RUNNABLE

10%

last 1 year in band

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

27.9in

+35% vs normal

27.87 in of precipitation so far this year, 35% above the 30-year normal of 20.6 in for this point in the season.

YTD Total

27.9in

This year so far

Normal to Date

20.6in

30-yr average

Typical Range

12.3–31.4in

10th–90th pct YTD

Departure

+35%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 1.61" · normal 2.53" (0.8–4.3)

Jan

Feb: 1.17" · normal 2.74" (0.8–5.0)

Feb

Mar: 2.91" · normal 2.99" (1.6–4.9)

Mar

Apr: 10.84" · normal 3.46" (1.5–5.9)

Apr

May: 5.29" · normal 4.91" (1.4–9.8)

May

Jun: 5.88" · normal 3.12" (0.5–6.2)

Jun

Jul: 0.17" (so far)· normal 1.78" (0.4–4.0)

Jul

Aug: normal 2.28" (0.3–4.9)

Aug

Sep: normal 3.21" (0.8–5.0)

Sep

Oct: normal 3.46" (0.7–8.0)

Oct

Nov: normal 3.01" (1.0–4.7)

Nov

Dec: normal 2.93" (0.8–5.4)

Dec

Baseline 1991–2020 · Source: Open-Meteo04:15 PM

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Station Location

30.2263, -97.8414

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DATA · USGS · NOAA · NWSUPDATED 2026-07-09 00:00 UTC

Site #08158922·USGS

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