USGS · 08158930

WILLIAMSON CK RIVER

USGS · 08158930LIVE

Williamson Ck at Manchaca Rd, Austin, TX

AUSTIN, TX30.2213°N, -97.7936°W Updated 18 hr ago

FLOW RATE

0cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

0cfs NaN% vs avg

Optimal band: 3–5 cfs

PERIOD HIGH

304cfs

PERIOD LOW

1cfs

RUNNABLE

last 1 year in band

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

27.0in

+31% vs normal

26.99 in of precipitation so far this year, 31% above the 30-year normal of 20.55 in for this point in the season.

YTD Total

27.0in

This year so far

Normal to Date

20.6in

30-yr average

Typical Range

12.3–31.4in

10th–90th pct YTD

Departure

+31%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 1.80" · normal 2.54" (0.8–4.3)

Jan

Feb: 0.97" · normal 2.71" (0.8–5.0)

Feb

Mar: 2.56" · normal 2.99" (1.6–5.0)

Mar

Apr: 10.00" · normal 3.46" (1.5–5.9)

Apr

May: 5.79" · normal 4.89" (1.4–9.8)

May

Jun: 5.70" · normal 3.12" (0.5–6.2)

Jun

Jul: 0.17" (so far)· normal 1.76" (0.4–4.0)

Jul

Aug: normal 2.27" (0.3–4.9)

Aug

Sep: normal 3.22" (0.8–5.1)

Sep

Oct: normal 3.44" (0.7–7.9)

Oct

Nov: normal 3.01" (1.0–4.7)

Nov

Dec: normal 2.91" (0.8–5.4)

Dec

Baseline 1991–2020 · Source: Open-Meteo03:03 PM

Your History · Williamson Ck at Manchaca Rd, Austin, TX

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Station Location

30.2213, -97.7936

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

Site #08158930·USGS

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