USGS · 08177700

OLMOS CK RIVER

USGS · 08177700LIVE

Olmos Ck at Dresden Dr, San Antonio, TX

SAN ANTONIO, TX29.4991°N, -98.5103°W Updated 35 min ago

FLOW RATE

0.14cfs

GAUGE HT

1.87ft

AIR TEMP

78°F

WIND

5mph SSE

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

0.14cfs 99.3% vs avg

Optimal band: 0–0 cfs

PERIOD HIGH

0.14cfs

PERIOD LOW

0.14cfs

RUNNABLE

last 1 day in band

Gauge Height

1.87ft

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

30.8in

+64% vs normal

30.8 in of precipitation so far this year, 64% above the 30-year normal of 18.8 in for this point in the season.

YTD Total

30.8in

This year so far

Normal to Date

18.8in

30-yr average

Typical Range

11.3–29.0in

10th–90th pct YTD

Departure

+64%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.91" · normal 2.26" (0.6–3.9)

Jan

Feb: 0.99" · normal 2.43" (0.7–4.5)

Feb

Mar: 4.40" · normal 3.15" (1.3–4.8)

Mar

Apr: 11.01" · normal 3.21" (1.1–5.8)

Apr

May: 6.73" · normal 4.36" (1.4–8.3)

May

Jun: 6.64" · normal 2.89" (0.5–5.1)

Jun

Jul: 0.11" (so far)· normal 2.10" (0.4–4.5)

Jul

Aug: normal 2.00" (0.3–4.9)

Aug

Sep: normal 3.35" (0.7–6.6)

Sep

Oct: normal 3.32" (0.6–7.6)

Oct

Nov: normal 2.68" (0.6–4.4)

Nov

Dec: normal 2.49" (0.6–4.2)

Dec

Baseline 1991–2020 · Source: Open-Meteo07:01 AM

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Station Location

29.4991, -98.5103

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DATA · USGS · NOAA · NWSUPDATED 2026-07-04 08:20 UTC

Site #08177700·USGS

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