Wynoochee Lake water level history
Daily records since 1989 · Level today: 731.73 ft
Highest on record
800.03 ft
May 9, 1990
Lowest on record
701.06 ft
Oct 18, 1992
Today
731.73 ft
Oct 21, 2026
Years of data
37
since 1989
In short
Across 36 complete years, 1992 had the lowest average level (754.37 ft) and 1997 the highest (782.79 ft).
On average the lake is lowest in October (762.80 ft) and highest in June (793.24 ft).
Wynoochee 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.
- 1992
- 2016
- 2019
- 2025
- 1993
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (293 days) | 767.79 | 732.04 | Oct 20 | 785.43 | Apr 24 |
| 2025 | 769.04 | 738.47 | Oct 23 | 788.66 | May 4 |
| 2024 | 780.11 | 762.38 | Jan 18 | 799.86 | Jun 12 |
| 2023 | 779.07 | 762.08 | Nov 30 | 799.84 | May 30 |
| 2022 | 779.93 | 755.96 | Oct 26 | 799.91 | Jun 22 |
| 2021 | 777.55 | 762.22 | Oct 13 | 793.43 | Jun 23 |
| 2020 | 779.02 | 763.78 | Oct 9 | 795.03 | Jun 15 |
| 2019 | 762.60 | 738.07 | Oct 15 | 777.50 | Apr 30 |
| 2018 | 775.83 | 751.00 | Oct 24 | 799.67 | May 16 |
| 2017 | 781.18 | 761.46 | Nov 8 | 799.68 | Jun 15 |
| 2016 | 767.30 | 735.92 | Oct 1 | 781.25 | May 5 |
| 2015 | 770.49 | 750.35 | Oct 9 | 784.92 | Apr 27 |
| 2014 | 777.02 | 755.33 | Oct 12 | 799.87 | May 4 |
| 2013 | 778.14 | 759.91 | Nov 6 | 799.99 | Jun 1 |
| 2012 | 781.07 | 762.72 | Dec 19 | 799.95 | Jul 1 |
| 2011 | 779.43 | 762.77 | Nov 15 | 799.97 | May 30 |
| 2010 | 780.09 | 761.48 | Oct 8 | 799.94 | May 26 |
| 2009 | 778.09 | 761.53 | Feb 21 | 799.56 | Jun 5 |
| 2008 | 778.47 | 762.78 | Feb 6 | 799.78 | Jun 28 |
| 2007 | 779.01 | 762.44 | Mar 4 | 797.54 | Jul 30 |
| 2006 | 779.56 | 760.79 | Nov 1 | 799.99 | Jun 8 |
| 2005 | 781.13 | 761.93 | Dec 18 | 799.93 | May 3 |
| 2004 | 775.86 | 762.52 | Jan 7 | 787.66 | Jun 16 |
| 2003 | 778.46 | 755.48 | Oct 8 | 799.03 | May 6 |
| 2002 | 780.12 | 756.49 | Nov 5 | 799.85 | May 6 |
| 2001 | 778.12 | 763.20 | Dec 7 | 796.90 | May 29 |
| 2000 | 779.78 | 762.24 | Jan 30 | 799.91 | May 19 |
| 1999 | 782.78 | 762.59 | Nov 5 | 799.78 | Jul 11 |
| 1998 | 773.30 | 751.91 | Oct 11 | 787.19 | Jun 1 |
| 1997 | 782.79 | 766.39 | Feb 13 | 799.99 | May 13 |
| 1996 | 778.28 | 761.17 | Oct 3 | 799.85 | May 2 |
| 1995 | 776.34 | 761.68 | Sep 29 | 790.38 | May 19 |
| 1994 | 780.20 | 765.65 | Jan 17 | 799.34 | Jun 16 |
| 1993 | 777.96 | 742.92 | Jan 19 | 799.89 | May 6 |
| 1992 | 754.37 | 701.06 | Oct 18 | 793.74 | May 2 |
| 1991 | 774.68 | 751.54 | Nov 3 | 796.52 | May 17 |
| 1990 | 775.91 | 759.14 | Nov 28 | 800.03 | May 9 |
| 1989 (91 days) | 762.15 | 758.35 | Nov 15 | 778.08 | Dec 4 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 769.00 | 742.92 | 791.42 |
| February | 769.41 | 757.27 | 786.47 |
| March | 772.61 | 760.48 | 797.42 |
| April | 783.45 | 762.12 | 799.40 |
| May | 792.85 | 775.08 | 800.03 |
| June | 793.24 | 764.61 | 799.99 |
| July | 787.91 | 751.46 | 799.95 |
| August | 779.49 | 730.73 | 797.72 |
| September | 770.08 | 712.29 | 795.18 |
| October | 762.80 | 701.06 | 790.02 |
| November | 767.69 | 723.34 | 784.78 |
| December | 768.52 | 735.65 | 789.85 |
Download
Daily levels as CSV (13,452 rows; credit the original agencies listed below)