Trinity Lake lake and shoreline

Trinity Lake Water Level

California

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Trinity Lake is currently 47.8 feet below full pool, with a water-surface elevation of 2322.2 feet.

2322.24 ft · Updated 1 day ago · U.S. Bureau of Reclamation (USBR)

Current level

2,322.24ft

−47.76 ft vs full pool

Low

Vs full pool

Since last reading

Down 0.20 ft

Previous readingSep 82,322.44 ft

7-day change

Down 0.65 ft

7-day trend: Falling

4 daily readings in the last 7 days

30-day change

Down 0.65 ft

4 daily readings in the last 30 days

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Water Level History

Elevation (ft) NGVD29 · MSL

2328 ft2346 ft2364 ftFULL POOL 2370.00 ftSep 7Sep 10

Level status

47.76 ft below full pool

Current level
2,322.24 ft
Full pool
2,370 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
U.S. Bureau of Reclamation (USBR)

Reference levels

  • Full pool2,370 ft

Watershed drought

Abnormally Dry

9.4% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Trinity County, CA

Abnormally Dry

Abnormally Dry. The surrounding county is abnormally dry, which is not official drought.. Trend: Stable compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

Yes

9.4% of the watershed is currently classified as official drought (D1+).

U.S. Drought Monitor · map date Sep 8, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Trinity County, CA

Daily level summary

  • Sep 9, 2026

    2,322.24 ft

    -0.2 ft

  • Sep 8, 2026

    2,322.44 ft

    -0.21 ft

  • Sep 7, 2026

    2,322.65 ft

    -0.24 ft

  • Sep 6, 2026

    2,322.89 ft

    —

Common questions about Trinity Lake’s water level

  • The current water level at Trinity Lake is 2,322.24 ft (updated 1 day ago). You can track the Trinity Lake lake level on the interactive chart and daily history above.

  • Full pool for Trinity Lake is 2,370 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Trinity Lake lake level is falling — falling about 0.65 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Trinity Lake is currently 47.76 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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