TUOLUMNE R A GRAND CYN OF TUOLUMNE AB HETCH HETCHY

TUOLUMNE COUNTY, CA37.9166°N, -119.6599°W Updated 18 min ago

FLOW RATE

178cfs

GAUGE HT

8.58ft

WATER TEMP

17°F

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

178cfs 81.0% vs avg

Optimal band: 160–216 cfs

PERIOD HIGH

213cfs

PERIOD LOW

168cfs

RUNNABLE

100%

last 1 day in band

Gauge Height

8.58ft

Water Temperature

17.3°F

Precipitation History

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37.9166, -119.6599

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DATA · USGS · NOAA · NWSUPDATED 2026-07-08 17:30 UTC

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