Country: USA
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Hyco Lake water level history

Daily records since 2009 · Level today: 407.67 ft

Highest on record
415.17 ft
Jul 7, 2025
Lowest on record
407.69 ft
Oct 21, 2026
Today
407.67 ft
Oct 23, 2026
Years of data
17
since 2009

In short

Across 12 complete years, 2012 had the lowest average level (409.85 ft) and 2016 the highest (410.40 ft).

On average the lake is lowest in September (409.55 ft) and highest in March (410.47 ft).

Hyco Lake level, all years

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Measured Normal range for the date (middle 50% of past years)

Each year's lowest and highest level

40740941141441620092011201320152017201920212023202520262009: lowest 408.35 ft (2009-10-26), highest 412.01 ft (2009-11-13), average 409.81 ft, 92 days measured2010: lowest 407.79 ft (2010-09-26), highest 411.72 ft (2010-02-06), average 409.92 ft, 365 days measured2011: lowest 408.26 ft (2011-09-05), highest 410.83 ft (2011-03-31), average 409.88 ft, 365 days measured2012: lowest 408.92 ft (2012-08-28), highest 410.82 ft (2012-03-25), average 409.85 ft, 366 days measured2013: lowest 409.34 ft (2013-11-25), highest 411.35 ft (2013-01-18), average 410.18 ft, 365 days measured2014: lowest 409.40 ft (2014-10-09), highest 411.62 ft (2014-05-16), average 410.20 ft, 346 days measured2015: lowest 409.00 ft (2015-09-24), highest 411.93 ft (2015-12-24), average 410.27 ft, 365 days measured2016: lowest 409.80 ft (2016-09-18), highest 412.54 ft (2016-10-09), average 410.40 ft, 361 days measured2017: lowest 409.12 ft (2017-10-21), highest 412.92 ft (2017-04-25), average 409.99 ft, 358 days measured2018: lowest 409.03 ft (2018-01-09), highest 412.57 ft (2018-11-13), average 410.34 ft, 314 days measured2021: lowest 408.99 ft (2021-12-10), highest 409.14 ft (2021-12-31), average 409.06 ft, 50 days measured2022: lowest 409.17 ft (2022-01-01), highest 411.40 ft (2022-03-18), average 410.12 ft, 365 days measured2023: lowest 409.24 ft (2023-11-20), highest 410.98 ft (2023-04-09), average 410.04 ft, 365 days measured2024: lowest 409.46 ft (2024-07-11), highest 411.90 ft (2024-01-10), average 410.32 ft, 366 days measured2025: lowest 409.84 ft (2025-12-17), highest 415.17 ft (2025-07-07), average 410.33 ft, 363 days measured2026: lowest 407.69 ft (2026-10-21), highest 410.73 ft (2026-02-17), average 409.48 ft, 291 days measured
407409411414416200920132017202120262009: lowest 408.35 ft (2009-10-26), highest 412.01 ft (2009-11-13), average 409.81 ft, 92 days measured2010: lowest 407.79 ft (2010-09-26), highest 411.72 ft (2010-02-06), average 409.92 ft, 365 days measured2011: lowest 408.26 ft (2011-09-05), highest 410.83 ft (2011-03-31), average 409.88 ft, 365 days measured2012: lowest 408.92 ft (2012-08-28), highest 410.82 ft (2012-03-25), average 409.85 ft, 366 days measured2013: lowest 409.34 ft (2013-11-25), highest 411.35 ft (2013-01-18), average 410.18 ft, 365 days measured2014: lowest 409.40 ft (2014-10-09), highest 411.62 ft (2014-05-16), average 410.20 ft, 346 days measured2015: lowest 409.00 ft (2015-09-24), highest 411.93 ft (2015-12-24), average 410.27 ft, 365 days measured2016: lowest 409.80 ft (2016-09-18), highest 412.54 ft (2016-10-09), average 410.40 ft, 361 days measured2017: lowest 409.12 ft (2017-10-21), highest 412.92 ft (2017-04-25), average 409.99 ft, 358 days measured2018: lowest 409.03 ft (2018-01-09), highest 412.57 ft (2018-11-13), average 410.34 ft, 314 days measured2021: lowest 408.99 ft (2021-12-10), highest 409.14 ft (2021-12-31), average 409.06 ft, 50 days measured2022: lowest 409.17 ft (2022-01-01), highest 411.40 ft (2022-03-18), average 410.12 ft, 365 days measured2023: lowest 409.24 ft (2023-11-20), highest 410.98 ft (2023-04-09), average 410.04 ft, 365 days measured2024: lowest 409.46 ft (2024-07-11), highest 411.90 ft (2024-01-10), average 410.32 ft, 366 days measured2025: lowest 409.84 ft (2025-12-17), highest 415.17 ft (2025-07-07), average 410.33 ft, 363 days measured2026: lowest 407.69 ft (2026-10-21), highest 410.73 ft (2026-02-17), average 409.48 ft, 291 days measured
Lowest to highest that yearYear average2026 so far

One bar per year from the lowest to the highest daily level, with the year's average. Years with no bar have no daily record in the agency archive.

Lowest years

Years ranked by their lowest daily level.

  • 2010407.79 ft on Sep 26
  • 2011408.26 ft on Sep 5
  • 2012408.92 ft on Aug 28
  • 2015409.00 ft on Sep 24
  • 2017409.12 ft on Oct 21

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (291 days)409.48407.69Oct 21410.73Feb 17
2025410.33409.84Dec 17415.17Jul 7
2024410.32409.46Jul 11411.90Jan 10
2023410.04409.24Nov 20410.98Apr 9
2022410.12409.17Jan 1411.40Mar 18
2021 (50 days)409.06408.99Dec 10409.14Dec 31
2018 (314 days)410.34409.03Jan 9412.57Nov 13
2017409.99409.12Oct 21412.92Apr 25
2016410.40409.80Sep 18412.54Oct 9
2015410.27409.00Sep 24411.93Dec 24
2014410.20409.40Oct 9411.62May 16
2013410.18409.34Nov 25411.35Jan 18
2012409.85408.92Aug 28410.82Mar 25
2011409.88408.26Sep 5410.83Mar 31
2010409.92407.79Sep 26411.72Feb 6
2009 (92 days)409.81408.35Oct 26412.01Nov 13

Levels in feet. Partial years show the number of days with data.

Monthly averages

MonthAverageLowestHighest
January410.29409.03411.90
February410.44409.93411.72
March410.47410.28411.40
April410.39409.93412.92
May410.37409.83411.74
June410.17409.54411.02
July409.92408.92415.17
August409.73408.38411.33
September409.55407.79411.60
October409.69407.69412.54
November409.94408.74412.57
December410.07408.99411.93

Download

Daily levels as CSV (5,097 rows; credit the original agencies listed below)