TUOLUMNE R A GRAND CYN OF TUOLUMNE AB HETCH HETCHY

TUOLUMNE COUNTY, CA37.9166°N, -119.6599°W Updated 17 hr ago

FLOW RATE

190cfs

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

190cfs 65.9% vs avg

Optimal band: 426–576 cfs

PERIOD HIGH

1,043cfs

PERIOD LOW

182cfs

RUNNABLE

10%

last 30 day in band

Precipitation History

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37.9166, -119.6599

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DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC

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