Canyon Lake: 96.8% full as of 2026-10-22
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 | 2026-10-22 | 96.8 | 907.53 | 366,869 | 366,798 | 378,781 | 8,067 |
| Yesterday | 2026-10-21 | 96.9 | 907.56 | 367,111 | 367,040 | 378,781 | 8,071 |
| 2 days ago | 2026-10-20 | 97.0 | 907.59 | 367,353 | 367,282 | 378,781 | 8,074 |
| 1 week ago | 2026-10-15 | 97.4 | 907.81 | 369,132 | 369,061 | 378,781 | 8,099 |
| 1 month ago | 2026-09-22 | 98.4 | 908.27 | 372,870 | 372,799 | 378,781 | 8,152 |
| 3 months ago | 2026-07-22 | 100.0 | 909.27 | 381,080 | 378,781 | 378,781 | - n.a. - |
| 6 months ago | 2026-04-22 | 58.6 | 886.49 | 221,912 | 221,841 | 378,781 | 5,796 |
| 1 year ago | 2025-10-22 | 64.9 | 890.52 | 246,082 | 246,011 | 378,781 | 6,201 |
*
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 | 2026-10-22 19:15 | 907.51 | 909.00 | -1.49 |
| 1 hour prior | 2026-10-22 18:15 | 907.51 | 909.00 | -1.49 |
| 2 hours prior | 2026-10-22 17:15 | 907.51 | 909.00 | -1.49 |
| 6 hours prior | 2026-10-22 13:15 | 907.53 | 909.00 | -1.47 |
| 12 hours prior | 2026-10-22 07:15 | 907.55 | 909.00 | -1.45 |
| 24 hours prior | 2026-10-21 19:15 | 907.55 | 909.00 | -1.45 |
| 48 hours prior | 2026-10-20 19:15 | 907.57 | 909.00 | -1.43 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1964-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 775.00 ft above NGVD29 |
| Service spillway crest elevation | 943.00 ft above NGVD29 |
| Emergency spillway crest elevation | 943.00 ft above NGVD29 |
| Flood pool elevation | 943.00 ft above NGVD29 |
| Maximum design elevation | 969.10 ft above NGVD29 |
| Top of dam elevation | 974.00 ft above NGVD29 |
| Conservation pool elevation | 909.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2000-11-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08167700 |
| USGS Monitoring Location | USGS:08167700 |
Lake Location
