Reservoir · Texas · United States · TWDB
Lake Graham
64.6% full
Capacity
55.86 hm³
Volume stored
36 hm³
Vs month average
85% of normal
Coordinates
33.135°N, 98.614°W
Last updated
2026-10-13
Current fill
64.6%vs 7 days ago
-0.7%losing
vs 1 year ago
-19.7%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
85%of normal
64.6% full on 2026-10-13, against an average of 75.6% for October across 5 years of readings (-11.0 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 Graham
As of October 13, 2026, Lake Graham is filled to 64.6% of its total capacity, holding roughly 36 hm³ of water out of a maximum 56 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 (-0.7 pts), and it is 19.7 points below its level on the same date a year earlier.
Across the readings we hold for Lake Graham — 1451 data points between October 15, 2022 and October 13, 2026 — the level has ranged from a low of 64.3% (September 30, 2026) to a high of 100.0% (November 10, 2024). On average the reservoir is fullest around June and at its lowest around October.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 33.135°N, 98.614°W.
Key facts
- Current fill level
- 64.6%
- Water stored
- 36 hm³
- Total capacity
- 56 hm³
- 7-day change
- ▼ 0.7 pts
- Year-on-year
- ▼ 19.7 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 33.135°N, 98.614°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 64.6% | 36 |
| 12 Oct 2026 | 64.7% | 36 |
| 11 Oct 2026 | 64.8% | 36 |
| 10 Oct 2026 | 64.9% | 36 |
| 9 Oct 2026 | 65.0% | 36 |
| 8 Oct 2026 | 65.1% | 36 |
| 7 Oct 2026 | 65.2% | 36 |
| 6 Oct 2026 | 65.3% | 36 |
| 5 Oct 2026 | 65.4% | 37 |
| 4 Oct 2026 | 65.4% | 37 |
| 3 Oct 2026 | 65.4% | 37 |
| 2 Oct 2026 | 65.5% | 37 |