Jim Chapman Lake water level history
Daily records since 2000 · Level today: 434.49 ft
Highest on record
448.51 ft
Mar 2, 2018
Lowest on record
422.02 ft
Dec 28, 2006
Today
434.49 ft
Oct 21, 2026
Years of data
26
since 2000
In short
Across 25 complete years, 2006 had the lowest average level (427.14 ft) and 2001 the highest (440.88 ft).
On average the lake is lowest in November (435.41 ft) and highest in May (438.14 ft).
Jim Chapman 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.
- 2006
- 2007
- 2013
- 2011
- 2014
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (293 days) | 436.64 | 434.52 | Oct 20 | 438.55 | Jun 25 |
| 2025 | 439.02 | 435.83 | Dec 31 | 443.51 | Jun 14 |
| 2024 | 439.21 | 435.58 | Dec 24 | 444.37 | Jun 6 |
| 2023 | 439.42 | 437.30 | Oct 24 | 442.83 | Feb 12 |
| 2022 | 436.44 | 434.04 | Oct 23 | 438.41 | Dec 16 |
| 2021 | 439.45 | 436.81 | Dec 31 | 442.48 | May 19 |
| 2020 | 438.93 | 435.53 | Dec 29 | 446.81 | Mar 20 |
| 2019 | 440.00 | 437.78 | Dec 31 | 443.86 | Jan 5 |
| 2018 | 439.57 | 435.70 | Sep 21 | 448.51 | Mar 2 |
| 2017 | 437.78 | 435.76 | Apr 1 | 444.01 | Aug 15 |
| 2016 | 439.59 | 436.28 | Dec 23 | 447.24 | Jan 1 |
| 2015 | 438.29 | 427.42 | Jan 1 | 447.87 | Dec 29 |
| 2014 | 429.30 | 427.03 | Mar 14 | 433.18 | May 15 |
| 2013 | 430.17 | 426.46 | Oct 25 | 433.26 | Jan 16 |
| 2012 | 435.43 | 427.06 | Jan 8 | 439.46 | May 15 |
| 2011 | 431.19 | 426.71 | Dec 3 | 435.03 | May 25 |
| 2010 | 437.68 | 432.80 | Dec 28 | 443.17 | Feb 10 |
| 2009 | 437.78 | 432.93 | Mar 11 | 443.87 | Oct 28 |
| 2008 | 438.71 | 433.86 | Dec 31 | 445.65 | Mar 21 |
| 2007 | 435.30 | 425.52 | Jan 1 | 442.19 | Jul 15 |
| 2006 | 427.14 | 422.02 | Dec 28 | 433.12 | Mar 23 |
| 2005 | 435.02 | 428.75 | Dec 31 | 438.70 | Mar 30 |
| 2004 | 433.31 | 430.16 | Nov 15 | 435.37 | Mar 8 |
| 2003 | 438.39 | 434.34 | Dec 31 | 440.69 | Feb 23 |
| 2002 | 439.93 | 437.47 | Oct 8 | 443.88 | Oct 21 |
| 2001 | 440.88 | 438.99 | Aug 25 | 446.98 | Dec 18 |
| 2000 (92 days) | 439.99 | 438.05 | Oct 14 | 444.29 | Dec 29 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 436.05 | 425.52 | 447.24 |
| February | 436.71 | 426.61 | 447.16 |
| March | 437.50 | 426.12 | 448.51 |
| April | 437.69 | 427.42 | 444.15 |
| May | 438.14 | 428.86 | 443.99 |
| June | 438.09 | 429.14 | 444.37 |
| July | 437.58 | 427.38 | 442.19 |
| August | 436.82 | 425.71 | 444.01 |
| September | 435.85 | 423.91 | 440.28 |
| October | 435.54 | 422.79 | 443.88 |
| November | 435.41 | 422.56 | 447.64 |
| December | 435.59 | 422.02 | 447.87 |
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Daily levels as CSV (9,370 rows; credit the original agencies listed below)