William H. Harsha Lake water level today
Reservoir in Clermont, Ohio · East Fork of Little Miami
730.61ft
222.69 m · NGVD29
Measured · provisional
Normal for the dateSteady
What this means
William H. Harsha Lake is 2.39 ft below its full pool of 733.00 ft.
It is lower than on Oct 21 in 4 of the last 10 years.
The lake has fallen 0.54 ft in 7 days and fallen 8.48 ft in 30 days.
Since 2002, the lowest daily level was 723.23 ft (Dec 2008) and the highest 777.10 ft (May 2011).
William H. Harsha Lake level chart
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Full pool
Same date in past years
| Date | Level | vs today |
|---|---|---|
| Oct 21, 2025 | 730.68 ft | ▲ 0.07 ft |
| Oct 21, 2024 | 729.53 ft | ▼ 1.08 ft |
| Oct 21, 2023 | 730.28 ft | ▼ 0.33 ft |
| Oct 21, 2022 | 730.02 ft | ▼ 0.59 ft |
| Oct 21, 2021 | 730.48 ft | ▼ 0.12 ft |
| Oct 21, 2020 | 730.43 ft | ▼ 0.18 ft |
| Oct 21, 2019 | 728.77 ft | ▼ 1.83 ft |
| Oct 21, 2018 | 730.73 ft | ▲ 0.12 ft |
| Oct 21, 2017 | 730.69 ft | ▲ 0.08 ft |
| Oct 21, 2016 | 731.53 ft | ▲ 0.92 ft |
Records & details
- Highest
- 777.10 ft on May 4, 2011
- Lowest
- 723.23 ft on Dec 1, 2008
- Records from
- 2002 (25 years of daily data)
- Full pool
- 733.00 ft (top of conservation pool, U.S. Army Corps of Engineers)
- Storage
- 85,423 acre-ft
- Inflow
- 25.1 cfs (0.71 m³/s)
- Outflow
- 31.0 cfs (0.88 m³/s)
- Water temperature
- Not measured here
Weather & wind
This Afternoon70°F · Sunny
Wind N 3 mph
Wind N 3 mph
Tonight40°F · Clear
Wind N 2 mph
Wind N 2 mph
Thursday69°F · Sunny
Wind N 1 to 6 mph
Wind N 1 to 6 mph
Thursday Night42°F · Mostly Clear
Wind NE 3 mph
Wind NE 3 mph
Friday68°F · Sunny
Wind E 2 to 6 mph
Wind E 2 to 6 mph
Friday Night43°F · Mostly Clear
Wind E 5 mph
Wind E 5 mph
NOAA National Weather Service forecast for this lake's location, updated 1 h ago.