Lake Oroville Water Level Today - 739.02 ft, 43.8% Full

Oroville Dam · Feather River · California - updated daily from official gauges

Western Reservoir Conditions·Daily·No. 91·Thursday, October 22, 2026·Latest reading October 21, 2026

• Lake Oroville is 43.8% full - low on this site's capacity scale - as of October 21, 2026. Surface elevation 739.02 feet, storage 1,499,558 acre-feet (capacity basis 3,424,753 acre-feet), per California DWR (CDEC) gauge data.
• That elevation is its lowest October reading since 2022, and 110.39 feet above its record low of 628.63 ft (September 30, 2021), in a daily record going back to October 1, 1985 (start of CDEC's daily record).
• Storage is 85% of the October 21 average across 41 years of record.
• Lake Oroville is falling: elevation changed -3.80 ft over the past week, -25.95 ft over the past month, and -39.04 ft over the past year, per California DWR (CDEC) gauge data.

Lake Oroville has fallen 39.04 feet in twelve months, and now sits 110.39 feet above its record low.

Lake Oroville vs its record low

In the daily record used by this site (going back to October 1, 1985 (start of CDEC's daily record)), Lake Oroville's lowest surface elevation was 628.63 feet on September 30, 2021, when storage was 787,578 acre-feet. As of October 21, 2026, Lake Oroville is at 739.02 feet - 110.39 feet above that record. The record high in the same series was 902.57 ft on February 11, 2017.

Lake Oroville storage in context

Lake Oroville water level, past 12 months

43.8% full at the latest reading - across the past 12 months it ranged from 43.8% (October 21, 2026) to 98.8% (May 20, 2026). Percent full is storage against the 3,424,753-acre-foot capacity basis, not a share of the elevation plotted above.

Lake Oroville elevation, full record

43.8% full at the latest reading - across the storage record since October 1, 1985 it ranged from 14.3% (November 25, 1985) to 104.5% (February 11, 2017). Percent full is storage against the 3,424,753-acre-foot capacity basis, not a share of the elevation plotted above. Every percentage here is measured against today's capacity basis; a reservoir's surveyed capacity changes as sediment accumulates behind the dam, so early-record percentages are indicative rather than exact.

Last 14 daily readings

Frequently asked questions

What is the water level of Lake Oroville today?

As of October 21, 2026, Lake Oroville's surface elevation is 739.02 feet, with 1,499,558 acre-feet in storage - 43.8% of the 3,424,753 acre-foot capacity basis. Source: California DWR CDEC daily gauge data.

How full is Lake Oroville?

Lake Oroville is 43.8% full as of October 21, 2026. Its storage is 85% of the October 21 average across its record since 1985. Source: California DWR CDEC daily gauge data.

When was Lake Oroville last full?

Lake Oroville was last at or above 95% of its 3,424,753 acre-foot capacity basis on June 14, 2026. As of October 21, 2026 it is 43.8% full. Source: California DWR CDEC daily gauge data.

Is Lake Oroville rising or falling?

Lake Oroville is falling: its elevation changed -3.80 feet over the week ending October 21, 2026, -25.95 ft over the past month, and -39.04 feet over the past year. Source: California DWR CDEC daily gauge data.

What was Lake Oroville's lowest water level on record?

Lake Oroville's lowest surface elevation in the daily record since October 1, 1985 was 628.63 feet on September 30, 2021, per the daily record used by this site. As of October 21, 2026 the reservoir is 110.39 feet above that record low.

About this gauge

Lake Oroville on the Feather River is the largest reservoir of the California State Water Project. CDEC recalculated its capacity rating curve effective July 1, 2024; storage values here use the new curve.

Operator

California Department of Water Resources (CDEC)

Station

Station ORO

Measurements

Sensor 6 (reservoir elevation), sensor 15 (storage), daily

Dam

Oroville Dam

River

Feather River

State

California

Coordinates

39.5400, -121.4930 (CDEC station ORO metadata)

Full pool reference

900.0 ft

Capacity basis

3,424,753 acre-feet (CDEC daily reservoir storage summary)

Period of record

October 1, 1985 (start of CDEC's daily record)

Status

Provisional - subject to revision by the reporting agency

Update cadence

Daily

Download the daily CSV (date, elevation ft, storage AF) or see all data downloads.

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