J. Strom Thurmond Lake water level history
Daily records since 2016 · Level today: 319.41 ft
Highest on record
334.49 ft
Mar 8, 2020
Lowest on record
319.01 ft
Jan 2, 2017
Today
319.41 ft
Oct 21, 2026
Years of data
10
since 2016
In short
Across 9 complete years, 2017 had the lowest average level (321.96 ft) and 2020 the highest (330.13 ft).
On average the lake is lowest in December (324.65 ft) and highest in May (328.85 ft).
J. Strom Thurmond 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.
- 2017
- 2018
- 2023
- 2024
- 2025
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (294 days) | 323.06 | 319.39 | Oct 21 | 325.05 | Jun 5 |
| 2025 | 328.13 | 323.37 | Dec 29 | 331.78 | May 16 |
| 2024 | 328.18 | 322.36 | Jan 2 | 332.18 | Mar 11 |
| 2023 | 327.73 | 321.59 | Dec 26 | 332.57 | Apr 1 |
| 2022 | 328.35 | 323.79 | Nov 27 | 334.29 | Apr 9 |
| 2021 | 329.70 | 326.61 | Dec 27 | 332.73 | Oct 11 |
| 2020 | 330.13 | 326.54 | Dec 14 | 334.49 | Mar 8 |
| 2019 | 327.61 | 323.54 | Dec 10 | 330.67 | Jun 28 |
| 2018 | 327.25 | 321.45 | Jan 2 | 330.49 | Apr 28 |
| 2017 | 321.96 | 319.01 | Jan 2 | 324.75 | Jul 14 |
| 2016 (210 days) | 324.24 | 319.08 | Dec 27 | 329.26 | Jun 10 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 325.93 | 319.01 | 330.49 |
| February | 327.39 | 320.02 | 333.89 |
| March | 328.21 | 319.72 | 334.49 |
| April | 328.64 | 320.15 | 334.29 |
| May | 328.85 | 322.28 | 332.09 |
| June | 328.83 | 323.28 | 331.55 |
| July | 328.16 | 323.54 | 332.10 |
| August | 327.22 | 321.71 | 331.17 |
| September | 326.07 | 320.41 | 331.49 |
| October | 325.76 | 319.39 | 332.73 |
| November | 325.30 | 319.46 | 331.26 |
| December | 324.65 | 319.08 | 329.46 |
Download
Daily levels as CSV (3,719 rows; credit the original agencies listed below)