Stillhouse Hollow Lake water level history
Daily records since 1988 · Level today: 620.87 ft
Highest on record
663.99 ft
Jul 17, 2007
Lowest on record
602.14 ft
Oct 25, 2023
Today
620.87 ft
Oct 22, 2026
Years of data
38
since 1988
In short
Across 30 complete years, 2023 had the lowest average level (607.16 ft) and 2007 the highest (631.57 ft).
On average the lake is lowest in February (618.77 ft) and highest in June (622.46 ft).
Stillhouse Hollow 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.
- 2023
- 2024
- 2012
- 2011
- 2015
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (293 days) | 621.66 | 619.33 | Apr 1 | 626.32 | May 30 |
| 2025 | 620.86 | 617.72 | Apr 30 | 631.93 | Jul 15 |
| 2024 | 618.06 | 603.91 | Jan 21 | 637.93 | May 26 |
| 2023 | 607.16 | 602.14 | Oct 25 | 610.78 | Jan 1 |
| 2022 | 615.47 | 610.77 | Nov 23 | 620.03 | Jan 1 |
| 2021 | 622.16 | 620.04 | Dec 31 | 625.16 | Jun 6 |
| 2020 | 621.73 | 618.24 | Feb 11 | 625.29 | Sep 23 |
| 2019 | 623.17 | 618.63 | Dec 26 | 634.75 | Jan 8 |
| 2018 | 619.79 | 613.82 | Sep 20 | 635.58 | Oct 29 |
| 2017 | 621.63 | 618.56 | Dec 31 | 624.45 | Apr 13 |
| 2016 | 625.33 | 621.62 | Jan 3 | 640.90 | Jun 7 |
| 2015 | 617.07 | 607.01 | Feb 14 | 626.79 | Nov 2 |
| 2014 | 610.76 | 607.59 | Dec 31 | 613.24 | Jun 27 |
| 2013 | 614.03 | 611.79 | Dec 19 | 616.39 | Jan 12 |
| 2012 | 616.17 | 604.80 | Jan 25 | 620.72 | May 21 |
| 2011 | 614.49 | 605.22 | Oct 7 | 622.20 | Feb 28 |
| 2010 | 622.75 | 621.60 | Sep 6 | 630.73 | Feb 6 |
| 2009 | 619.69 | 616.17 | Mar 10 | 630.29 | Oct 28 |
| 2008 | 620.89 | 617.27 | Dec 31 | 625.04 | May 17 |
| 2007 | 631.57 | 618.59 | Jan 3 | 663.99 | Jul 17 |
| 2006 | 620.87 | 618.40 | Dec 28 | 624.46 | May 9 |
| 2005 | 622.68 | 621.26 | Dec 26 | 628.47 | Jan 1 |
| 2004 | 623.77 | 620.35 | Mar 12 | 637.43 | Nov 30 |
| 2003 | 621.94 | 620.80 | Dec 31 | 624.28 | Feb 24 |
| 2002 | 622.47 | 621.70 | Sep 30 | 627.68 | Jul 8 |
| 2001 | 622.74 | 621.23 | Aug 25 | 625.58 | Nov 19 |
| 2000 (92 days) | 621.00 | 618.19 | Oct 14 | 623.11 | Nov 24 |
| 1996 (218 days) | 618.67 | 613.00 | Aug 6 | 620.66 | Jan 1 |
| 1995 | 621.95 | 620.65 | Dec 29 | 623.55 | Apr 8 |
| 1994 | 621.94 | 620.52 | Oct 14 | 624.56 | May 30 |
| 1993 | 623.17 | 621.54 | Sep 12 | 629.06 | May 6 |
| 1992 (41 days) | 622.23 | 621.64 | Nov 18 | 622.78 | Dec 17 |
| 1991 (230 days) | 622.54 | 621.99 | Sep 1 | 625.78 | May 9 |
| 1990 | 621.78 | 617.32 | Jan 14 | 627.78 | Jun 5 |
| 1989 | 615.97 | 610.37 | Jan 10 | 619.80 | Jul 4 |
| 1988 (88 days) | 610.55 | 610.31 | Dec 6 | 611.00 | Oct 2 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 618.96 | 603.91 | 634.75 |
| February | 618.77 | 604.73 | 630.73 |
| March | 619.02 | 604.92 | 628.85 |
| April | 619.64 | 604.76 | 630.01 |
| May | 621.36 | 608.54 | 647.14 |
| June | 622.46 | 607.98 | 654.63 |
| July | 621.82 | 606.10 | 663.99 |
| August | 620.77 | 604.30 | 662.21 |
| September | 619.76 | 603.32 | 645.34 |
| October | 619.20 | 602.14 | 635.58 |
| November | 619.64 | 604.48 | 637.43 |
| December | 619.42 | 603.81 | 637.43 |
Download
Daily levels as CSV (11,786 rows; credit the original agencies listed below)