Diamond Lake lake and shoreline

Diamond Lake Water Level

Oregon

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Diamond Lake

Diamond Lake is currently at a water-surface elevation of 5183.9 feet.

5183.88 ft · Updated 4 hours ago · U.S. Geological Survey (USGS)

Current level

5,183.88ft

Status unavailable

Since last reading

Down 0.01 ft

Previous readingOct 245,183.9 ft

7-day change

Down 0.15 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 0.30 ft

30 daily readings in the last 30 days

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Water Level History

Current
5183.88 ft
24h
-0.01 ft
7d
-0.15 ft
30d
-0.30 ft

Elevation (ft) Water-surface elevation (ft)

Reference line is designed full pool.

Water Temperature

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Lake Level Context

Current lake level

Diamond Lake is currently 5183.88 ft. The lake has fallen 0.15 ft over the past 7 days and 0.30 ft over the past 30 days.

Diamond Lake Level Details

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

Conditions & Reference

Level status

Summary updating

This comparison needs the current level and full pool. We use the live feed when present, otherwise the latest daily summary when it includes a pool comparison.

DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
Water-surface elevation (ft)
Elevation reference
Not available
Source
U.S. Geological Survey (USGS)

Reference levels

No published reference elevations for this lake.

Surrounding county drought

Severe Drought

94.8% of surrounding county in official drought (D1–D4).

Severity

NoneExtreme
Trend
Stable

Surrounding county drought

Douglas County, OR

Severe Drought

Severe Drought. The largest share of Douglas County, OR is in Severe Drought (D2), an official USDM drought category. 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

94.8% of the surrounding county is in official drought categories (D1–D4). Dominant category remains Severe Drought.

Typical county impacts (USDM guidance)

  • Lower streamflows in the surrounding county
  • Drier soils and vegetation stress
  • Minor increase in wildfire risk for the area

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 Douglas County, OR

Daily level summary

DateLevelChange
Oct 25, 20265,183.89-0.01
Oct 24, 20265,183.9-0.03
Oct 23, 20265,183.93-0.03
Oct 22, 20265,183.96-0.03
Oct 21, 20265,183.99-0.02
Oct 20, 20265,184.01+0.01
Oct 19, 20265,184-0.04

Common questions about Diamond Lake’s water level

  • The current water level at Diamond Lake is 5,183.88 ft (updated 4 hours ago). You can track the Diamond Lake lake level on the interactive chart and daily history above.

  • The current 7-day trend for the Diamond Lake lake level is falling — falling about 0.15 ft over the past week. See the history chart above for the full picture.

  • Readings refresh when U.S. Geological Survey (USGS) publishes new gauge data — typically daily for most reservoirs. The timestamp above the chart shows when the latest observation arrived on Lake Insights.

Lake level glossary

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

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