Lake Conroe: 94.7% full as of 2026-09-15
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Today | 2026-09-15 | 94.7 | 199.88 | 395,662 | 395,635 | 417,577 | 19,289 |
| Yesterday | 2026-09-14 | 94.7 | 199.87 | 395,469 | 395,442 | 417,577 | 19,283 |
| 2 days ago | 2026-09-13 | 94.8 | 199.89 | 395,855 | 395,828 | 417,577 | 19,294 |
| 1 week ago | 2026-09-08 | 95.2 | 199.98 | 397,594 | 397,567 | 417,577 | 19,343 |
| 1 month ago | 2026-08-15 | 97.1 | 200.39 | 405,570 | 405,543 | 417,577 | 19,565 |
| 3 months ago | 2026-06-15 | 99.0 | 200.79 | 413,439 | 413,412 | 417,577 | 19,781 |
| 6 months ago | 2026-03-15 | 95.4 | 200.03 | 398,562 | 398,535 | 417,577 | 19,370 |
| 1 year ago | 2025-09-15 | 99.0 | 200.80 | 413,637 | 413,610 | 417,577 | 19,786 |
*
Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.
**
Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.
Most Recent Instantaneous Water Level
| Date/time |
Water Level (ft) |
Conservation Pool Elevation (ft) |
Height Above Conservation Pool (ft) |
|
|---|---|---|---|---|
| Most recent | 2026-09-15 03:45 | 199.87 | 201.00 | -1.13 |
| 1 hour prior | 2026-09-15 02:45 | 199.87 | 201.00 | -1.13 |
| 2 hours prior | 2026-09-15 01:45 | 199.87 | 201.00 | -1.13 |
| 6 hours prior | 2026-09-14 21:45 | 199.87 | 201.00 | -1.13 |
| 12 hours prior | 2026-09-14 15:45 | 199.88 | 201.00 | -1.12 |
| 24 hours prior | 2026-09-14 03:45 | 199.87 | 201.00 | -1.13 |
| 48 hours prior | 2026-09-13 03:45 | 199.89 | 201.00 | -1.11 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1973-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 145.00 ft above NGVD29 |
| Top of gate elevation | 202.50 ft above NGVD29 |
| Emergency spillway crest elevation | 173.00 ft above NGVD29 |
| Maximum design elevation | 207.00 ft above NGVD29 |
| Top of dam elevation | 212.00 ft above NGVD29 |
| Conservation pool elevation | 201.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1973-01-01 (source: TWDB)
1996-04-01 (source: TWDB)
: GIS Data
2010-08-01 (source: TWDB)
: GIS Data
2020-10-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08067600 |
| USGS Monitoring Location | USGS:08067600 |
Lake Location
