Trinity Lake lake and shoreline

Trinity Lake Water Level

California

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Trinity Lake

Trinity Lake is currently 55.4 feet below full pool, with a water-surface elevation of 2314.6 feet.

2314.61 ft · Updated 2 days ago · U.S. Bureau of Reclamation (USBR)

Current level

2,314.61ft

−55.39 ft vs full pool

Low

Vs full pool

Since last reading

Down 0.08 ft

Previous readingOct 232,314.69 ft

7-day change

Down 0.63 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 3.74 ft

29 daily readings in the last 30 days

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Water Level History

Current
2314.61 ft
24h
-0.08 ft
7d
-0.63 ft
30d
-3.74 ft

Elevation (ft) NGVD29 · MSL

Reference line is designed full pool.

Water Temperature

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Lake Level Context

Level remains below the full pool

Trinity Lake is currently 2314.61 ft, 55.39 ft below its full pool. The lake has fallen 0.63 ft over the past 7 days and 3.74 ft over the past 30 days.

Trinity Lake Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

55.39 ft below full pool

Current level
2,314.61 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

Surrounding county drought

Abnormally Dry

6.1% of surrounding county in official drought (D1–D4).

Severity

NoneExtreme
Trend
Stable

Surrounding county drought

Trinity County, CA

Abnormally Dry

Abnormally Dry. The largest share of Trinity County, CA is Abnormally Dry (D0). 6.1% of the county is still in Moderate Drought or worse (D1–D4), which the U.S. Drought Monitor treats as official drought. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Stable compared with last week. Official drought (D1–D4) yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought (D1–D4)

Yes

6.1% of the surrounding county is in official drought categories (D1–D4). Dominant category remains Abnormally Dry.

U.S. Drought Monitor · map date Oct 20, 2026. Updated weekly. Official drought means U.S. Drought Monitor categories D1–D4 (Moderate through Exceptional). Abnormally Dry (D0) is not counted as official drought. droughtmonitor.unl.eduView drought map for Trinity County, CA

Daily level summary

DateLevelChange
Oct 24, 20262,314.61-0.08
Oct 23, 20262,314.69-0.1
Oct 22, 20262,314.79-0.1
Oct 21, 20262,314.89-0.06
Oct 20, 20262,314.95-0.09
Oct 19, 20262,315.04-0.1
Oct 18, 20262,315.14-0.1

Common questions about Trinity Lake’s water level

  • The current water level at Trinity Lake is 2,314.61 ft (updated 2 days 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 0.63 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Trinity Lake is currently 55.39 ft below full pool.

Lake level glossary

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

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