lakedates.com

California · Yolo County Flood Control & WCD (Cache Creek Dam); levels tracked by Lake County

Clear Lake water level

Today's reading against full pool and Clear Lake's own seasonal history.

Searched “Clear lake level” or “lake level for Clear Lake”? Same lake, same reading — you're in the right place. The current reading is right here too, whether you typed “current Clear Lake water level” or “current water level at Clear Lake”.

FULL POOL 0 2 4 6 8
Elevation, feet (Rumsey gauge)

as of September 23, 2026

2.51 ft Rumsey gauge

level 5.1 ft below full pool — typical for late September

Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 11450000) and updates live when you load this page.

Is Clear Lake full?

Not quite — 5.1 ft below full pool as of September 23, 2026

How full is Clear Lake? Not as a percentage: no storage figure comes through with this gauge reading, and a share of capacity worked out from the elevation alone would be a guess — how much water a reservoir holds at a given level is a curve only the operator's own capacity table knows. Feet from full pool is what the operator publishes, and it is the figure above.

Clear Lake through the year

The band is the lake's own normal: where the level has run on each calendar day, 1980–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.

full pool 0 5 JFMAMJJASOND
Median and normal range by day of year, 1980–2026 · elevation, feet (Rumsey gauge)

This year vs the years that matter

This year's trace against last year and the driest and wettest years on record — the drought-context question every lake regular asks.

full pool 0 5 10 JFMAMJJASOND
  • 2026 (this year)
  • 2025 (last year)
  • 1995 (wettest on record)
  • 2022 (driest on record)

Full pool, datum, and the gauge

"Full pool" here means the conservation pool — the level the lake is designed to hold for water supply and recreation, not the flood-control space above it. The full explainer covers flood pool and dead pool too.

Full pool 7.56 ft Rumsey gauge · per Yolo County Flood Control & WCD (Cache Creek Dam); levels tracked by Lake County full-pool reference
Conservation capacity 526,800 acre-feet · per Yolo County Flood Control & WCD (Cache Creek Dam); levels tracked by Lake County capacity reference
Gauge USGS gauge 11450000 · U.S. Geological Survey National Water Information System
Datum Rumsey gauge — Clear Lake is quoted on the Rumsey scale everyone local uses: full is 7.56 Rumsey, and zero Rumsey is 1,318.256 ft above sea level.
Last verified August 15, 2026

LakeDates reports lake level, not ramp status. Whether a given ramp or marina is usable at this level varies ramp by ramp — call the marina before you tow.

Quick answers

What is the lake level for Clear Lake today?

Clear Lake is at 2.51 ft (Rumsey gauge) as of September 23, 2026 — 5.1 ft below full pool — typical for late September.

Is Clear Lake full?

Not quite — at 2.51 ft on September 23, 2026, Clear Lake is 5.0 ft below its full pool of 7.56 ft (Rumsey gauge).

How full is Clear Lake?

Not as a percentage: no storage figure comes through with this gauge reading, and a share of capacity worked out from the elevation alone would be a guess — how much water a reservoir holds at a given level is a curve only the operator's own capacity table knows. Feet from full pool is what the operator publishes, and it is the figure above.

What is full pool for Clear Lake?

Full pool (the conservation pool) for Clear Lake is 7.56 ft Rumsey gauge, per Yolo County Flood Control & WCD (Cache Creek Dam); levels tracked by Lake County full-pool reference. Levels above it use flood storage; levels below it are drawdown.