Colebrook River Lake water level history
Daily records since 1996 · Level today: 657.99 ft
Highest on record
739.51 ft
Apr 22, 2007
Lowest on record
633.43 ft
Jan 3, 1999
Today
657.99 ft
Oct 22, 2026
Years of data
30
since 1996
In short
Across 29 complete years, 2002 had the lowest average level (652.90 ft) and 2023 the highest (710.24 ft).
On average the lake is lowest in September (665.50 ft) and highest in May (708.45 ft).
Colebrook River Lake level, all years
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Lowest years
Years ranked by their lowest daily level.
- 1999
- 1998
- 2002
- 2016
- 2001
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (292 days) | 688.39 | 658.25 | Oct 21 | 712.08 | Apr 20 |
| 2025 | 677.69 | 652.13 | Oct 12 | 716.63 | Jun 2 |
| 2024 | 690.31 | 655.46 | Nov 21 | 722.62 | Mar 11 |
| 2023 | 710.24 | 703.72 | Sep 10 | 725.71 | Dec 21 |
| 2022 | 701.12 | 687.33 | Oct 4 | 717.38 | Apr 11 |
| 2021 | 699.95 | 682.70 | Mar 11 | 717.79 | Jul 19 |
| 2020 | 683.23 | 641.69 | Oct 7 | 716.48 | May 5 |
| 2019 | 690.22 | 656.82 | Aug 26 | 715.84 | Apr 22 |
| 2018 | 698.21 | 654.01 | Jan 11 | 718.05 | Apr 17 |
| 2017 | 677.75 | 639.76 | Oct 24 | 715.82 | Apr 12 |
| 2016 | 664.55 | 635.39 | Oct 14 | 701.94 | May 16 |
| 2015 | 681.17 | 644.49 | Oct 27 | 714.94 | Apr 23 |
| 2014 | 685.97 | 656.75 | Oct 15 | 719.02 | May 3 |
| 2013 | 684.99 | 655.82 | Nov 26 | 736.20 | Jun 17 |
| 2012 | 680.05 | 643.33 | Sep 18 | 706.12 | Jan 1 |
| 2011 | 698.64 | 663.61 | Feb 24 | 733.87 | Sep 12 |
| 2010 | 680.89 | 640.41 | Sep 15 | 725.16 | Apr 2 |
| 2009 | 699.75 | 680.75 | Oct 15 | 713.60 | Jan 1 |
| 2008 | 691.55 | 656.43 | Jan 1 | 720.21 | Mar 11 |
| 2007 | 678.22 | 639.29 | Oct 11 | 739.51 | Apr 22 |
| 2006 | 690.57 | 650.40 | Oct 1 | 726.61 | Jan 21 |
| 2005 | 688.78 | 642.33 | Oct 7 | 719.19 | Apr 10 |
| 2004 | 691.82 | 667.28 | Sep 7 | 712.38 | May 5 |
| 2003 | 691.48 | 663.45 | Mar 17 | 715.38 | Jun 24 |
| 2002 | 652.90 | 634.58 | Jan 29 | 684.39 | Jun 18 |
| 2001 | 671.96 | 638.11 | Dec 14 | 717.15 | Jun 4 |
| 2000 | 683.45 | 647.39 | Nov 12 | 724.40 | Jun 12 |
| 1999 | 679.93 | 633.43 | Jan 3 | 714.40 | May 25 |
| 1998 | 679.11 | 633.90 | Dec 21 | 720.42 | May 13 |
| 1997 | 681.61 | 639.69 | Oct 9 | 716.27 | May 5 |
| 1996 (1 days) | 707.74 | 707.74 | Dec 31 | 707.74 | Dec 31 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 683.67 | 633.43 | 726.61 |
| February | 684.25 | 634.64 | 710.51 |
| March | 692.53 | 636.60 | 722.62 |
| April | 705.55 | 644.20 | 739.51 |
| May | 708.45 | 650.86 | 720.42 |
| June | 704.16 | 673.92 | 736.20 |
| July | 692.74 | 650.78 | 724.15 |
| August | 676.80 | 640.57 | 713.63 |
| September | 665.50 | 636.13 | 733.87 |
| October | 665.91 | 635.39 | 728.18 |
| November | 672.28 | 637.54 | 715.07 |
| December | 677.25 | 633.90 | 725.71 |
Download
Daily levels as CSV (10,861 rows; credit the original agencies listed below)