Clearwater Lake water level history
Daily records since 1998 · Level today: 494.47 ft
Highest on record
570.81 ft
May 6, 2017
Lowest on record
493.54 ft
Mar 23, 2007
Today
494.47 ft
Oct 21, 2026
Years of data
28
since 1998
In short
Across 22 complete years, 2010 had the lowest average level (496.30 ft) and 2008 the highest (509.17 ft).
On average the lake is lowest in October (495.15 ft) and highest in May (510.70 ft).
Clearwater 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.
- 2007
- 2016
- 2006
- 2025
- 2005
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (293 days) | 498.09 | 494.30 | Apr 9 | 526.98 | Jul 12 |
| 2025 | 501.45 | 494.02 | Dec 1 | 542.36 | Apr 10 |
| 2024 | 498.89 | 494.28 | Dec 13 | 532.48 | Nov 8 |
| 2023 | 499.61 | 494.21 | Feb 24 | 529.01 | Mar 28 |
| 2022 | 498.46 | 494.23 | Jan 27 | 519.49 | Feb 24 |
| 2021 | 498.63 | 494.23 | Jan 11 | 524.57 | Mar 21 |
| 2020 | 499.96 | 494.28 | Feb 21 | 523.78 | Mar 27 |
| 2019 | 500.78 | 494.12 | Feb 4 | 528.81 | May 10 |
| 2018 | 499.12 | 494.29 | Nov 20 | 524.14 | Feb 27 |
| 2017 | 509.14 | 494.37 | Feb 3 | 570.81 | May 6 |
| 2016 | 501.22 | 493.87 | Mar 17 | 540.71 | Jan 1 |
| 2015 | 499.01 | 494.14 | Dec 23 | 540.37 | Dec 31 |
| 2014 | 496.65 | 494.07 | Oct 20 | 506.19 | Jan 1 |
| 2013 | 499.72 | 494.33 | Feb 18 | 520.31 | May 8 |
| 2012 | 496.37 | 494.10 | Feb 28 | 503.24 | Mar 19 |
| 2011 | 507.59 | 494.17 | Apr 11 | 566.59 | May 6 |
| 2010 | 496.30 | 494.22 | Feb 2 | 503.13 | May 23 |
| 2009 | 500.58 | 494.06 | Feb 24 | 535.74 | Nov 2 |
| 2008 | 509.17 | 494.12 | Feb 4 | 563.02 | Apr 13 |
| 2007 | 496.56 | 493.54 | Mar 23 | 512.54 | May 7 |
| 2006 | 496.94 | 493.87 | Dec 31 | 511.91 | Dec 3 |
| 2005 | 496.62 | 494.03 | Feb 22 | 508.52 | Jan 16 |
| 2004 | 496.74 | 494.10 | Apr 16 | 512.12 | May 4 |
| 2003 (92 days) | 498.78 | 494.15 | Oct 31 | 520.71 | Nov 21 |
| 1999 (275 days) | 500.75 | 493.77 | Mar 3 | 520.44 | Apr 18 |
| 1998 (143 days) | 502.59 | 494.07 | Nov 16 | 527.76 | Aug 14 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 497.71 | 493.91 | 540.71 |
| February | 496.95 | 493.93 | 524.14 |
| March | 499.69 | 493.54 | 548.04 |
| April | 503.88 | 493.99 | 563.02 |
| May | 510.70 | 494.07 | 570.81 |
| June | 504.93 | 497.69 | 560.79 |
| July | 500.19 | 496.24 | 540.49 |
| August | 499.03 | 496.90 | 527.76 |
| September | 497.38 | 495.00 | 518.94 |
| October | 495.15 | 494.07 | 531.01 |
| November | 497.86 | 494.07 | 535.74 |
| December | 496.34 | 493.87 | 540.37 |
Download
Daily levels as CSV (8,837 rows; credit the original agencies listed below)