J Percy Priest Lake water level history
Daily records since 1989 · Level today: 489.26 ft
Highest on record
504.68 ft
May 4, 2010
Lowest on record
481.78 ft
Jan 30, 2014
Today
489.26 ft
Oct 21, 2026
Years of data
37
since 1989
In short
Across 36 complete years, 2012 had the lowest average level (487.01 ft) and 2019 the highest (488.94 ft).
On average the lake is lowest in January (484.52 ft) and highest in May (490.55 ft).
J Percy Priest 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.
- 2014
- 1994
- 1990
- 1997
- 2006
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (294 days) | 487.19 | 483.16 | Jan 24 | 491.81 | Aug 9 |
| 2025 | 488.22 | 482.47 | Jan 24 | 492.29 | Apr 8 |
| 2024 | 488.49 | 482.58 | Jan 23 | 497.70 | May 11 |
| 2023 | 487.87 | 482.61 | Feb 11 | 491.88 | May 13 |
| 2022 | 488.49 | 482.83 | Dec 30 | 495.67 | Feb 26 |
| 2021 | 488.84 | 482.91 | Jan 22 | 502.59 | Apr 1 |
| 2020 | 488.64 | 482.91 | Mar 13 | 496.47 | Feb 14 |
| 2019 | 488.94 | 483.04 | Feb 6 | 500.60 | Feb 25 |
| 2018 | 488.13 | 483.20 | Jan 19 | 492.32 | Apr 25 |
| 2017 | 488.41 | 483.40 | Feb 25 | 496.35 | Apr 24 |
| 2016 | 487.39 | 483.17 | Jan 21 | 490.70 | Aug 28 |
| 2015 | 488.31 | 482.94 | Feb 20 | 493.84 | Jul 9 |
| 2014 | 488.24 | 481.78 | Jan 30 | 494.55 | Oct 15 |
| 2013 | 488.52 | 482.60 | Feb 21 | 496.75 | Apr 30 |
| 2012 | 487.01 | 483.13 | Mar 2 | 492.53 | Sep 19 |
| 2011 | 488.66 | 482.65 | Jan 18 | 501.60 | May 5 |
| 2010 | 488.58 | 482.47 | Jan 7 | 504.68 | May 4 |
| 2009 | 488.22 | 482.65 | Feb 17 | 497.25 | May 11 |
| 2008 | 488.83 | 484.45 | Dec 31 | 491.61 | Jun 4 |
| 2007 | 487.45 | 482.31 | Feb 3 | 490.35 | Nov 16 |
| 2006 | 488.17 | 482.11 | Jan 10 | 493.90 | Jan 25 |
| 2005 | 487.60 | 482.25 | Jan 28 | 491.17 | Jul 22 |
| 2004 | 488.18 | 482.39 | Jan 17 | 495.24 | Feb 8 |
| 2003 | 488.19 | 482.17 | Mar 15 | 500.88 | May 8 |
| 2002 | 488.39 | 482.20 | Mar 8 | 495.90 | Jan 26 |
| 2001 | 488.23 | 482.42 | Jan 13 | 493.98 | Feb 19 |
| 2000 | 488.31 | 482.31 | Jan 1 | 492.77 | Apr 28 |
| 1999 | 487.55 | 482.22 | Dec 25 | 493.36 | Jan 25 |
| 1998 | 487.93 | 482.51 | Dec 11 | 494.84 | Jun 11 |
| 1997 | 488.02 | 482.06 | Dec 21 | 497.82 | Mar 7 |
| 1996 | 487.96 | 482.38 | Feb 7 | 493.37 | Aug 2 |
| 1995 | 487.74 | 482.16 | Mar 3 | 494.27 | Oct 6 |
| 1994 | 488.81 | 481.86 | Dec 23 | 500.28 | Mar 30 |
| 1993 | 487.66 | 482.28 | Feb 6 | 491.21 | May 5 |
| 1992 | 487.80 | 482.21 | Feb 7 | 492.50 | Sep 24 |
| 1991 | 488.54 | 482.31 | Jan 25 | 496.83 | Feb 21 |
| 1990 | 487.62 | 482.02 | Feb 25 | 496.00 | Dec 31 |
| 1989 (1 days) | 483.77 | 483.77 | Dec 31 | 483.77 | Dec 31 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 484.52 | 481.78 | 496.51 |
| February | 485.08 | 481.84 | 500.60 |
| March | 485.55 | 482.12 | 502.04 |
| April | 489.00 | 483.94 | 502.59 |
| May | 490.55 | 485.45 | 504.68 |
| June | 490.31 | 486.27 | 494.96 |
| July | 490.40 | 486.05 | 496.71 |
| August | 490.34 | 488.96 | 493.37 |
| September | 490.22 | 488.84 | 495.09 |
| October | 489.41 | 486.54 | 494.55 |
| November | 486.93 | 483.77 | 493.41 |
| December | 485.15 | 481.86 | 496.25 |
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Daily levels as CSV (13,444 rows; credit the original agencies listed below)