Texas AI Docket
Texas Water Watch

Reservoir record

Lake Houston

Lake Houston is 97.8% full, holding 129,358 acre feet against a conservation capacity of 132,318 acre feet.

Updated October 20th, 2026

Percent full97.8%
Storage129,358AF
Conservation capacity132,318AF
Change today+113AF
Across the record-2,503AF
Recorded range90.2% to 100.0%
Record71days

Daily movement

The line follows every verified reading held for this reservoir.

88.4%94.2%100.0% August 11th, 2026, 99.7% fullAugust 12th, 2026, 100.0% fullAugust 13th, 2026, 100.0% fullAugust 14th, 2026, 100.0% fullAugust 15th, 2026, 100.0% fullAugust 16th, 2026, 99.9% fullAugust 17th, 2026, 99.7% fullAugust 18th, 2026, 99.5% fullAugust 19th, 2026, 99.3% fullAugust 20th, 2026, 99.2% fullAugust 21st, 2026, 99.0% fullAugust 22nd, 2026, 98.8% fullAugust 23rd, 2026, 98.7% fullAugust 24th, 2026, 98.5% fullAugust 25th, 2026, 98.3% fullAugust 26th, 2026, 98.2% fullAugust 27th, 2026, 97.8% fullAugust 28th, 2026, 98.0% fullAugust 29th, 2026, 99.8% fullAugust 30th, 2026, 100.0% fullAugust 31st, 2026, 100.0% fullSeptember 1st, 2026, 97.2% fullSeptember 2nd, 2026, 90.2% fullSeptember 3rd, 2026, 91.2% fullSeptember 4th, 2026, 95.5% fullSeptember 5th, 2026, 97.9% fullSeptember 6th, 2026, 100.0% fullSeptember 7th, 2026, 100.0% fullSeptember 8th, 2026, 100.0% fullSeptember 9th, 2026, 100.0% fullSeptember 10th, 2026, 100.0% fullSeptember 11th, 2026, 100.0% fullSeptember 12th, 2026, 100.0% fullSeptember 13th, 2026, 100.0% fullSeptember 14th, 2026, 100.0% fullSeptember 15th, 2026, 100.0% fullSeptember 16th, 2026, 100.0% fullSeptember 17th, 2026, 100.0% fullSeptember 18th, 2026, 100.0% fullSeptember 19th, 2026, 100.0% fullSeptember 20th, 2026, 99.9% fullSeptember 21st, 2026, 99.8% fullSeptember 22nd, 2026, 99.7% fullSeptember 23rd, 2026, 99.5% fullSeptember 24th, 2026, 99.3% fullSeptember 25th, 2026, 99.1% fullSeptember 26th, 2026, 99.0% fullSeptember 27th, 2026, 98.8% fullSeptember 28th, 2026, 98.7% fullSeptember 29th, 2026, 98.6% fullSeptember 30th, 2026, 98.5% fullOctober 1st, 2026, 98.4% fullOctober 2nd, 2026, 99.8% fullOctober 3rd, 2026, 100.0% fullOctober 4th, 2026, 100.0% fullOctober 5th, 2026, 100.0% fullOctober 6th, 2026, 100.0% fullOctober 7th, 2026, 100.0% fullOctober 8th, 2026, 100.0% fullOctober 9th, 2026, 100.0% fullOctober 10th, 2026, 100.0% fullOctober 11th, 2026, 100.0% fullOctober 12th, 2026, 100.0% fullOctober 13th, 2026, 100.0% fullOctober 14th, 2026, 100.0% fullOctober 15th, 2026, 100.0% fullOctober 16th, 2026, 100.0% fullOctober 17th, 2026, 99.7% fullOctober 18th, 2026, 97.8% fullOctober 19th, 2026, 97.7% fullOctober 20th, 2026, 97.8% fullAug 11thSep 15thOct 20th
Daily percent full. The vertical scale follows this record's own range instead of starting at zero, so its movement stays visible without changing the measurement.

The readings

Daily movement appears only when the previous reading is from the prior calendar day.

DatePercent fullStorageDaily movement
October 20th, 202697.8%129,358 AF+113 AF
October 19th, 202697.7%129,245 AF-113 AF
October 18th, 202697.8%129,358 AF-2,503 AF
October 17th, 202699.7%131,861 AF-457 AF
October 16th, 2026100.0%132,318 AF0 AF
October 15th, 2026100.0%132,318 AF0 AF
October 14th, 2026100.0%132,318 AF0 AF
October 13th, 2026100.0%132,318 AF0 AF
October 12th, 2026100.0%132,318 AF0 AF
October 11th, 2026100.0%132,318 AF0 AF
October 10th, 2026100.0%132,318 AF0 AF
October 9th, 2026100.0%132,318 AF0 AF
October 8th, 2026100.0%132,318 AF0 AF
October 7th, 2026100.0%132,318 AF0 AF
October 6th, 2026100.0%132,318 AF0 AF
October 5th, 2026100.0%132,318 AF0 AF
October 4th, 2026100.0%132,318 AF0 AF
October 3rd, 2026100.0%132,318 AF+228 AF
October 2nd, 202699.8%132,090 AF+1,938 AF
October 1st, 202698.4%130,152 AF-114 AF
September 30th, 202698.5%130,266 AF-227 AF
September 29th, 202698.6%130,493 AF-114 AF
September 28th, 202698.7%130,607 AF-114 AF
September 27th, 202698.8%130,721 AF-227 AF
September 26th, 202699.0%130,948 AF-228 AF
September 25th, 202699.1%131,176 AF-228 AF
September 24th, 202699.3%131,404 AF-229 AF
September 23rd, 202699.5%131,633 AF-228 AF
September 22nd, 202699.7%131,861 AF-229 AF
September 21st, 202699.8%132,090 AF-114 AF
September 20th, 202699.9%132,204 AF-114 AF
September 19th, 2026100.0%132,318 AF0 AF
September 18th, 2026100.0%132,318 AF0 AF
September 17th, 2026100.0%132,318 AF0 AF
September 16th, 2026100.0%132,318 AF0 AF
September 15th, 2026100.0%132,318 AF0 AF
September 14th, 2026100.0%132,318 AF0 AF
September 13th, 2026100.0%132,318 AF0 AF
September 12th, 2026100.0%132,318 AF0 AF
September 11th, 2026100.0%132,318 AF0 AF
September 10th, 2026100.0%132,318 AF0 AF
September 9th, 2026100.0%132,318 AF0 AF
September 8th, 2026100.0%132,318 AF0 AF
September 7th, 2026100.0%132,318 AF0 AF
September 6th, 2026100.0%132,318 AF+2,733 AF
September 5th, 202697.9%129,585 AF+3,269 AF
September 4th, 202695.5%126,316 AF+5,659 AF
September 3rd, 202691.2%120,657 AF+1,315 AF
September 2nd, 202690.2%119,342 AF-9,224 AF
September 1st, 202697.2%128,566 AF-3,752 AF
August 31st, 2026100.0%132,318 AF0 AF
August 30th, 2026100.0%132,318 AF+228 AF
August 29th, 202699.8%132,090 AF+2,392 AF
August 28th, 202698.0%129,698 AF+227 AF
August 27th, 202697.8%129,471 AF-454 AF
August 26th, 202698.2%129,925 AF-114 AF
August 25th, 202698.3%130,039 AF-227 AF
August 24th, 202698.5%130,266 AF-341 AF
August 23rd, 202698.7%130,607 AF-114 AF
August 22nd, 202698.8%130,721 AF-227 AF
August 21st, 202699.0%130,948 AF-342 AF
August 20th, 202699.2%131,290 AF-114 AF
August 19th, 202699.3%131,404 AF-229 AF
August 18th, 202699.5%131,633 AF-228 AF
August 17th, 202699.7%131,861 AF-343 AF
August 16th, 202699.9%132,204 AF-114 AF
August 15th, 2026100.0%132,318 AF0 AF
August 14th, 2026100.0%132,318 AF0 AF
August 13th, 2026100.0%132,318 AF0 AF
August 12th, 2026100.0%132,318 AF+457 AF
August 11th, 202699.7%131,861 AFFirst reading

Every reading is available in the open water record.