Lewisville Lake water level history
Daily records since 1988 · Level today: 518.08 ft
Highest on record
536.79 ft
May 31, 2015
Lowest on record
507.07 ft
Oct 14, 2000
Today
518.08 ft
Oct 21, 2026
Years of data
39
since 1988
In short
Across 27 complete years, 2000 had the lowest average level (509.07 ft) and 2015 the highest (523.73 ft).
On average the lake is lowest in October (518.28 ft) and highest in June (521.70 ft).
Lewisville Lake level, all years
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Full pool
Lowest years
Years ranked by their lowest daily level.
- 2000
- 1999
- 2006
- 2013
- 2014
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (293 days) | 521.44 | 518.09 | Sep 30 | 524.49 | Jun 22 |
| 2025 | 521.39 | 519.53 | Jan 8 | 524.51 | Jun 10 |
| 2024 | 522.41 | 518.67 | Dec 6 | 531.28 | Jun 9 |
| 2023 (306 days) | 520.67 | 516.34 | Oct 23 | 522.64 | Mar 4 |
| 2022 | 520.10 | 516.67 | Oct 24 | 524.20 | Jun 5 |
| 2021 | 522.39 | 520.36 | Dec 25 | 528.26 | Jun 9 |
| 2020 | 522.75 | 520.56 | Aug 29 | 529.74 | Mar 27 |
| 2019 | 522.92 | 519.90 | Oct 20 | 529.03 | May 22 |
| 2018 | 521.96 | 518.47 | Aug 9 | 529.60 | Oct 26 |
| 2017 | 521.68 | 519.73 | Dec 16 | 522.92 | Jan 19 |
| 2016 | 523.55 | 521.31 | Nov 2 | 531.62 | Jan 1 |
| 2015 | 523.73 | 514.55 | Jan 1 | 536.79 | May 31 |
| 2014 | 514.77 | 513.60 | Jul 16 | 516.92 | Aug 6 |
| 2013 | 515.61 | 513.08 | Oct 26 | 517.41 | Jun 19 |
| 2012 | 519.19 | 515.50 | Dec 24 | 524.85 | Mar 23 |
| 2011 | 519.00 | 514.84 | Nov 19 | 522.21 | May 26 |
| 2010 | 521.71 | 519.15 | Sep 6 | 524.27 | Feb 15 |
| 2009 | 520.48 | 517.42 | Mar 7 | 526.56 | Oct 27 |
| 2008 | 520.60 | 517.85 | Nov 9 | 524.77 | Mar 23 |
| 2007 | 521.94 | 513.63 | Jan 1 | 534.03 | Jul 7 |
| 2006 | 513.52 | 511.46 | Aug 27 | 515.85 | Mar 23 |
| 2005 | 519.65 | 514.73 | Dec 31 | 523.92 | Jan 6 |
| 2004 | 520.88 | 516.83 | Jan 12 | 524.81 | Nov 25 |
| 2003 | 520.15 | 516.96 | Dec 26 | 522.40 | Mar 12 |
| 2002 | 520.40 | 516.32 | Jan 22 | 525.49 | Apr 15 |
| 2001 | 520.36 | 514.58 | Jan 1 | 526.85 | Mar 13 |
| 2000 | 509.07 | 507.07 | Oct 14 | 514.51 | Dec 31 |
| 1999 | 512.95 | 508.28 | Dec 8 | 516.02 | Jun 2 |
| 1998 | 519.14 | 514.02 | Nov 29 | 525.55 | Mar 19 |
| 1997 (92 days) | 518.80 | 518.21 | Dec 1 | 520.76 | Dec 28 |
| 1988 (143 days) | 513.33 | 510.65 | Jul 10 | 514.96 | Jan 20 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 519.05 | 508.34 | 531.62 |
| February | 519.36 | 508.33 | 525.94 |
| March | 520.20 | 508.75 | 529.74 |
| April | 520.48 | 509.42 | 528.74 |
| May | 521.15 | 509.91 | 536.79 |
| June | 521.70 | 509.52 | 536.47 |
| July | 520.85 | 507.45 | 534.18 |
| August | 519.39 | 507.12 | 529.75 |
| September | 518.67 | 507.60 | 525.55 |
| October | 518.28 | 507.07 | 529.60 |
| November | 518.40 | 507.62 | 529.42 |
| December | 518.63 | 508.28 | 531.59 |
Download
Daily levels as CSV (10,646 rows; credit the original agencies listed below)