Clarence J Brown Reservoir Water Level

Ohio · updated daily from the U.S. Geological Survey

1012.22 ft

Clarence J Brown Reservoir is high for this time of year and steady (+0.12 ft in the last 7 days).

Change since yesterday: +0.01 ft

Reading as of 2026-08-14 · higher than 88% of August readings on record

Where Clarence J Brown Reservoir sits historically

TODAY 1012.22 ftRECORD LOW1008.97 ft2024-03-02RECORD HIGH1014.06 ft2026-05-28

Today's level compared with every reading in our 5.0-year record for this lake.

Since yesterday

+0.01 ft

7-day change

+0.12 ft

30-day change

+0.09 ft

1-year change

+0.15 ft

Last 30 days

2026-07-171012.0–1012.2 ft2026-08-14

Last 12 months

2025-08-141008.4–1014.7 ft2026-08-14

Full history (5.0 years)

2021-08-161008.4–1014.4 ft2026-08-14

Clarence J Brown Reservoir records and averages

Current level1012.22 ft
Record high1014.06 ft (2026-05-28)
Record low1008.97 ft (2024-03-02)
Average of all readings1010.74 ft
Data span5.0 years (1,806 readings)

Frequently asked questions

Is Clarence J Brown Reservoir full right now?

As of 2026-08-14, Clarence J Brown Reservoir sits at 1012.22 ft, which is high for this time of year.Over the past 30 days the level has risen 0.09 ft.

What is the water level at Clarence J Brown Reservoir today?

The most recent reading is 1012.22 ft (2026-08-14), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Clarence J Brown Reservoir has ever been?

The highest level in our records is 1014.06 ft on 2026-05-28. The lowest is 1008.97 ft on 2024-03-02. Our record covers about 5.0 years of readings.

Is Clarence J Brown Reservoir low for this time of year?

Compared with every August in our records, the current level is higher than 88% of them — high for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Clarence J Brown Reservoir changing right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Clarence J Brown Reservoir has risen 0.09 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Clarence J Brown Reservoir changed over the past year?

The level is +0.15 ft compared with this date last year (1012.22 ft today). The full-history chart above covers 5.0 years, with a record high of 1014.06 ft and a record low of 1008.97 ft.

Nearby lakes in Ohio

Indian Lake water level
996.74 ft · rising
O'Shaughnessy Reservoir water level
850.12 ft · rising
Griggs Reservoir water level
758.32 ft · rising
Lake Loramie water level
955.14 ft · rising
Hoover Reservoir water level
891.17 ft · rising
Grand Lake St Marys water level
871.3 ft · rising

Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Ohio lake levels.