Lake Chelan (Res) water level history
Daily records since 1990 · Level today: 1,094.93 ft
Highest on record
11,000.00 ft
Jul 2, 1990
Lowest on record
709.18 ft
Jan 1, 1997
Today
1,094.93 ft
Oct 21, 2026
Years of data
37
since 1990
In short
Across 36 complete years, 2011 had the lowest average level (1,091.56 ft) and 1990 the highest (10,948.25 ft).
On average the lake is lowest in December (1,350.22 ft) and highest in November (1,368.90 ft).
Lake Chelan (Res) 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.
- 1997
- 1995
- 1998
- 1996
- 2003
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (286 days) | 1,095.55 | 1,089.38 | Mar 18 | 1,099.56 | Jul 14 |
| 2025 | 1,093.49 | 1,085.88 | Mar 1 | 1,099.63 | Jul 3 |
| 2024 | 1,093.57 | 1,089.05 | Mar 20 | 1,099.57 | Jul 24 |
| 2023 | 1,092.97 | 1,084.86 | Apr 1 | 1,099.57 | Aug 12 |
| 2022 | 1,093.43 | 1,087.29 | May 1 | 1,099.50 | Jul 31 |
| 2021 | 1,093.85 | 1,085.59 | Apr 1 | 1,099.78 | Jul 2 |
| 2020 | 1,093.23 | 1,085.42 | Mar 29 | 1,099.88 | Jul 23 |
| 2019 | 1,092.70 | 1,084.64 | Mar 22 | 1,099.81 | Jul 8 |
| 2018 | 1,093.37 | 1,085.66 | Apr 2 | 1,099.74 | Jul 21 |
| 2017 | 1,093.36 | 1,085.59 | Mar 14 | 1,099.68 | Aug 15 |
| 2016 | 1,095.09 | 1,087.78 | Mar 20 | 1,099.82 | Jul 1 |
| 2015 | 1,095.41 | 1,091.61 | Mar 14 | 1,099.87 | Jun 30 |
| 2014 | 1,093.28 | 1,085.78 | Mar 7 | 1,099.98 | Jul 15 |
| 2013 | 1,092.97 | 1,086.10 | Feb 28 | 1,099.89 | Jul 12 |
| 2012 | 1,092.52 | 1,083.28 | Mar 28 | 1,099.98 | Jul 28 |
| 2011 | 1,091.56 | 1,082.99 | May 8 | 1,099.99 | Aug 6 |
| 2010 | 1,094.35 | 1,089.37 | Dec 31 | 1,099.95 | Aug 20 |
| 2009 | 1,093.98 | 1,086.01 | Apr 8 | 1,099.96 | Jul 27 |
| 2008 | 1,091.98 | 1,082.65 | Mar 15 | 1,099.88 | Jul 29 |
| 2007 | 1,094.54 | 1,088.96 | Mar 12 | 1,099.97 | Jul 20 |
| 2006 | 1,092.98 | 1,082.87 | Apr 21 | 1,103.58 | Oct 21 |
| 2005 | 1,095.92 | 1,090.35 | Dec 26 | 1,099.93 | Jun 1 |
| 2004 | 1,094.50 | 1,087.84 | Apr 8 | 1,099.91 | Aug 28 |
| 2003 | 1,093.95 | 1,054.10 | Oct 27 | 1,099.93 | Jul 6 |
| 2002 | 1,092.45 | 1,084.42 | Apr 13 | 1,099.93 | Jul 25 |
| 2001 | 1,094.85 | 1,090.01 | Jan 1 | 1,139.21 | Apr 3 |
| 2000 | 1,094.22 | 1,087.72 | Apr 4 | 1,099.83 | Jul 24 |
| 1999 | 1,092.85 | 1,083.43 | Apr 19 | 1,099.79 | Aug 7 |
| 1998 | 1,094.82 | 1,043.29 | Apr 6 | 1,099.90 | Aug 27 |
| 1997 | 1,092.31 | 709.18 | Jan 1 | 1,099.90 | Aug 4 |
| 1996 | 1,095.20 | 1,047.46 | Apr 8 | 1,099.75 | Sep 2 |
| 1995 | 1,093.69 | 1,040.45 | Apr 3 | 1,099.86 | Jul 8 |
| 1994 | 1,092.27 | 1,068.81 | Apr 23 | 1,099.90 | Jul 11 |
| 1993 | 1,092.82 | 1,083.01 | Mar 21 | 1,099.96 | Jun 16 |
| 1992 | 1,092.61 | 1,083.62 | Mar 23 | 1,099.57 | Jul 28 |
| 1991 | 1,095.25 | 1,089.36 | Dec 31 | 1,100.00 | Jul 21 |
| 1990 | 10,948.25 | 10,864.10 | Apr 2 | 11,000.00 | Jul 2 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 1,356.21 | 709.18 | 10,931.70 |
| February | 1,351.83 | 1,069.96 | 10,910.00 |
| March | 1,351.82 | 1,068.18 | 10,886.00 |
| April | 1,352.48 | 1,040.45 | 10,901.60 |
| May | 1,357.18 | 1,072.04 | 10,927.90 |
| June | 1,365.03 | 1,051.51 | 10,988.40 |
| July | 1,367.94 | 1,083.90 | 11,000.00 |
| August | 1,367.28 | 1,084.38 | 11,000.00 |
| September | 1,366.06 | 1,083.41 | 11,000.00 |
| October | 1,366.31 | 1,054.10 | 10,980.80 |
| November | 1,368.90 | 1,067.38 | 11,000.00 |
| December | 1,350.22 | 1,069.15 | 11,000.00 |
Download
Daily levels as CSV (13,424 rows; credit the original agencies listed below)