Possum Kingdom Lake Water Level Today - 995.04 ft, 87.5% Full

Brazos River · Texas - updated daily from official gauges

Western Reservoir Conditions·Daily·No. 47·Tuesday, September 8, 2026·Latest reading September 8, 2026

• Possum Kingdom Lake is 87.5% full - high on this site's capacity scale - as of September 8, 2026. Surface elevation 995.04 feet, storage 470,881 acre-feet (capacity basis 538,139 acre-feet), per Texas Water Development Board data.
• That elevation is its lowest September reading since 2022, and 28.04 feet above its record low of 967.00 ft (February 19, 1953), in a daily record going back to January 1, 1947 (TWDB's period of record for this reservoir).
• Storage is 95% of the September 8 average across 80 years of record.
• Possum Kingdom Lake is falling: elevation changed -0.26 ft over the past week, -1.45 ft over the past month, and -3.16 ft over the past year, per Texas Water Development Board data.

Possum Kingdom Lake has fallen 3.16 feet in twelve months, and now sits 28.04 feet above its record low.

Possum Kingdom Lake vs its record low

In the daily record used by this site (going back to January 1, 1947 (TWDB's period of record for this reservoir)), Possum Kingdom Lake's lowest surface elevation was 967.00 feet on February 19, 1953, when storage was 271,830 acre-feet. As of September 8, 2026, Possum Kingdom Lake is at 995.04 feet - 28.04 feet above that record. The record high in the same series was 1,002.20 ft on October 14, 1981.

Possum Kingdom Lake storage in context

Possum Kingdom Lake water level, past 12 months

87.5% full at the latest reading - across the past 12 months it ranged from 87.5% (September 8, 2026) to 97.4% (September 8, 2025). Percent full is storage against the 538,139-acre-foot capacity basis, not a share of the elevation plotted above.

Possum Kingdom Lake elevation, full record

87.5% full at the latest reading - across the storage record since March 22, 1941 it ranged from 0.6% (March 22, 1941) to 132.3% (November 7, 1942). Percent full is storage against the 538,139-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 Possum Kingdom Lake today?

As of September 8, 2026, Possum Kingdom Lake's surface elevation is 995.04 feet, with 470,881 acre-feet in storage - 87.5% of the 538,139 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.

How full is Possum Kingdom Lake?

Possum Kingdom Lake is 87.5% full as of September 8, 2026. Its storage is 95% of the September 8 average across its record since 1947. Source: Water Data for Texas (TWDB) daily data.

When was Possum Kingdom Lake last full?

Possum Kingdom Lake was last at or above 95% of its 538,139 acre-foot capacity basis on October 5, 2025. As of September 8, 2026 it is 87.5% full. Source: Water Data for Texas (TWDB) daily data.

Is Possum Kingdom Lake rising or falling?

Possum Kingdom Lake is falling: its elevation changed -0.26 feet over the week ending September 8, 2026, -1.45 ft over the past month, and -3.16 feet over the past year. Source: Water Data for Texas (TWDB) daily data.

What was Possum Kingdom Lake's lowest water level on record?

Possum Kingdom Lake's lowest surface elevation in the daily record since January 1, 1947 was 967.00 feet on February 19, 1953, per the daily record used by this site. As of September 8, 2026 the reservoir is 28.04 feet above that record low.

About this gauge

Possum Kingdom Lake is a Texas water-supply reservoir in the Brazos River basin. Water Data for Texas publishes a conservation pool elevation of 999.0 ft and a conservation capacity of 538,139 acre-feet, with daily water level and storage recorded since 1941-03-22.

Operator

Texas Water Development Board (Water Data for Texas)

Station

possum-kingdom

Measurements

Daily water level and conservation storage

River

Brazos River

State

Texas

Full pool reference

999.0 ft

Capacity basis

538,139 acre-feet (Water Data for Texas (TWDB) conservation capacity)

Period of record

January 1, 1947 (TWDB's period of record for this reservoir)

Status

Provisional - subject to revision by the reporting agency

Update cadence

Daily

TWDB reports conservation storage against a conservation capacity that is restated as new volumetric surveys are completed, so a percent-full figure here can change without the water level changing. TWDB's methodology page is linked in the notes below.

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

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