C. M. Harden Lake water level history
Daily records since 2002 · Level today: 660.85 ft
Highest on record
689.98 ft
Jul 21, 2015
Lowest on record
638.59 ft
Feb 13, 2026
Today
660.85 ft
Oct 21, 2026
Years of data
25
since 2002
In short
Across 23 complete years, 2012 had the lowest average level (649.79 ft) and 2005 the highest (660.90 ft).
On average the lake is lowest in December (642.42 ft) and highest in May (665.19 ft).
C. M. Harden 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.
- 2018
- 2006
- 2025
- 2009
- 2015
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (294 days) | 657.02 | 638.59 | Feb 13 | 668.76 | Aug 24 |
| 2025 | 654.14 | 639.34 | Dec 17 | 667.69 | Apr 15 |
| 2024 | 654.23 | 640.05 | Dec 14 | 664.09 | Apr 24 |
| 2023 | 654.51 | 640.03 | Dec 16 | 663.18 | Aug 12 |
| 2022 | 657.04 | 640.10 | Jan 26 | 669.04 | Apr 3 |
| 2021 | 655.61 | 640.06 | Jan 23 | 666.89 | Nov 5 |
| 2020 | 656.09 | 640.04 | Dec 1 | 666.40 | May 29 |
| 2019 | 658.17 | 640.03 | Dec 18 | 673.69 | May 14 |
| 2018 | 657.31 | 639.05 | Jan 31 | 675.24 | Apr 9 |
| 2017 | 654.86 | 639.98 | Dec 31 | 675.99 | May 8 |
| 2016 | 655.64 | 640.03 | Feb 23 | 667.96 | Jan 2 |
| 2015 | 657.74 | 639.98 | Feb 11 | 689.98 | Jul 21 |
| 2014 | 655.81 | 639.99 | Feb 10 | 665.77 | Apr 12 |
| 2013 | 658.33 | 640.48 | Dec 13 | 686.27 | Apr 28 |
| 2012 | 649.79 | 640.03 | Feb 25 | 656.37 | Oct 31 |
| 2011 | 658.29 | 640.00 | Jan 13 | 678.57 | May 4 |
| 2010 | 655.94 | 640.00 | Jan 20 | 675.82 | Jun 28 |
| 2009 | 658.78 | 639.96 | Nov 30 | 676.40 | May 21 |
| 2008 | 660.25 | 640.01 | Dec 1 | 687.52 | Jun 11 |
| 2007 | 660.42 | 641.86 | Dec 1 | 674.97 | Jan 23 |
| 2006 | 657.44 | 639.11 | Feb 14 | 667.49 | Nov 1 |
| 2005 | 660.90 | 640.18 | Nov 30 | 677.72 | Jan 18 |
| 2004 | 656.19 | 640.04 | Feb 18 | 665.81 | Jun 21 |
| 2003 | 657.09 | 640.03 | Feb 13 | 676.16 | Sep 8 |
| 2002 (322 days) | 659.39 | 640.05 | Jan 28 | 689.74 | May 14 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 646.84 | 638.90 | 677.72 |
| February | 645.87 | 638.59 | 671.48 |
| March | 652.06 | 640.01 | 675.10 |
| April | 660.31 | 645.94 | 686.27 |
| May | 665.19 | 649.97 | 689.74 |
| June | 664.47 | 654.85 | 687.52 |
| July | 663.95 | 653.81 | 689.98 |
| August | 662.26 | 653.46 | 683.86 |
| September | 661.80 | 653.47 | 676.16 |
| October | 660.50 | 652.83 | 667.61 |
| November | 649.30 | 639.94 | 667.49 |
| December | 642.42 | 639.34 | 667.48 |
Download
Daily levels as CSV (8,784 rows; credit the original agencies listed below)