
Lake levels
Clarence J Brown Reservoir, OH
- water level
- 1010.96 ft
- Condition
- About average for this time of year
- 7-day change
- -0.30 ft
- 30-day change
- -1.13 ft
- 1-year change
- -0.02 ft
Reading as of 2026-10-12 | the U.S. Geological Survey
- Since yesterday
- -0.09 ft
- 7-day change
- -0.30 ft
- 30-day change
- -1.13 ft
- 1-year change
- -0.02 ft
- Record high
- 1014.06 ft
In brief
Clarence J Brown Reservoir stood at 1,010.96 feet on Oct 12, 2026. That is higher than 56% of October readings since 2017.
Source: U.S. Geological Survey
Lake level timeline
Records and averages
| Current level | 1010.96 ft |
|---|---|
| Record high | 1014.06 ft (2026-05-28) |
| Record low | 1008.96 ft (2020-03-26) |
| Average of all readings | 1010.73 ft |
| Data span | 9 years (3,257 readings) |
Level schematic
Frequently asked questions
Is Clarence J Brown Reservoir full right now?
As of 2026-10-12, Clarence J Brown Reservoir sits at 1010.96 ft, which is about average for this time of year. Over the past 30 days the level has fallen 1.13 ft.
What is the water level at Clarence J Brown Reservoir today?
The most recent reading at Clarence J Brown Reservoir is 1010.96 ft (2026-10-12), 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 for Clarence J Brown Reservoir in our records is 1014.06 ft on 2026-05-28. The lowest is 1008.96 ft on 2020-03-26. Our record covers about 9 years of readings.
Is Clarence J Brown Reservoir low for this time of year?
Compared with every October in our records, the current level is higher than 56% of them, which we classify as about average 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 low 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 fallen 1.13 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?
Clarence J Brown Reservoir is -0.02 ft compared with this date last year (1010.96 ft today). The full-history chart above covers 9 years, with a record high of 1014.06 ft and a record low of 1008.96 ft.
Download and cite
Quote this reading
Clarence J Brown Reservoir stood at 1,010.96 feet on Oct 12, 2026. That is higher than 56% of October readings since 2017.
Download the full record
clarence-j-brown-reservoir-oh-water-level-history.csv
How to cite
MyWaterLevel, “Clarence J Brown Reservoir water level, 2017 to 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/oh/clarence-j-brown-reservoir/, accessed Oct 13, 2026.
Source: the U.S. Geological Survey. All Ohio lake levels. Readings are provisional and may be revised. About our data and methods.