Reservoir · Texas · United States · TWDB
Lake Cisco
42.4% full
Capacity
35.77 hm³
Volume stored
15 hm³
Vs month average
75% of normal
Coordinates
32.438°N, 98.986°W
Last updated
2026-10-13
Current fill
42.4%vs 7 days ago
-0.2%losing
vs 1 year ago
-8.0%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
75%of normal
42.4% full on 2026-10-13, against an average of 56.8% for October across 5 years of readings (-14.4 points).
Data source: Texas Water Development Board (Water Data for Texas) — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-10-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
About Lake Cisco
As of October 13, 2026, Lake Cisco is filled to 42.4% of its total capacity, holding roughly 15 hm³ of water out of a maximum 36 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 8.0 points below its level on the same date a year earlier.
Across the readings we hold for Lake Cisco — 1458 data points between October 15, 2022 and October 13, 2026 — the level has ranged from a low of 42.4% (September 29, 2026) to a high of 72.6% (October 15, 2022). On average the reservoir is fullest around November and at its lowest around September.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 32.438°N, 98.986°W.
Key facts
- Current fill level
- 42.4%
- Water stored
- 15 hm³
- Total capacity
- 36 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▼ 8.0 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 32.438°N, 98.986°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 42.4% | 15 |
| 12 Oct 2026 | 42.4% | 15 |
| 11 Oct 2026 | 42.4% | 15 |
| 10 Oct 2026 | 42.5% | 15 |
| 9 Oct 2026 | 42.5% | 15 |
| 8 Oct 2026 | 42.6% | 15 |
| 7 Oct 2026 | 42.6% | 15 |
| 6 Oct 2026 | 42.6% | 15 |
| 5 Oct 2026 | 42.7% | 15 |
| 4 Oct 2026 | 42.7% | 15 |
| 3 Oct 2026 | 42.7% | 15 |
| 2 Oct 2026 | 42.7% | 15 |