Country: USA
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Mackenzie Reservoir water level history

Daily records since 1999 · Level today: 3,018.33 ft

Highest on record
3,035.46 ft
Jun 25, 1999
Lowest on record
3,001.09 ft
May 21, 2014
Today
3,018.33 ft
Oct 23, 2026
Years of data
27
since 1999

In short

Across 24 complete years, 2013 had the lowest average level (3,005.25 ft) and 2005 the highest (3,032.76 ft).

On average the lake is lowest in April (3,019.08 ft) and highest in July (3,020.74 ft).

Mackenzie Reservoir level, all years

Loading chart…

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

Each year's lowest and highest level

2,9993,0093,0183,0283,038199920032007201120152019202320261999: lowest 3,035.25 ft (1999-05-25), highest 3,035.46 ft (1999-06-25), average 3,035.36 ft, 2 days measured2001: lowest 3,027.72 ft (2001-12-31), highest 3,029.21 ft (2001-09-30), average 3,028.36 ft, 93 days measured2002: lowest 3,022.12 ft (2002-10-01), highest 3,027.74 ft (2002-01-05), average 3,025.29 ft, 365 days measured2003: lowest 3,017.67 ft (2003-12-31), highest 3,025.99 ft (2003-01-01), average 3,022.19 ft, 365 days measured2004: lowest 3,015.98 ft (2004-06-16), highest 3,032.57 ft (2004-11-26), average 3,022.20 ft, 366 days measured2005: lowest 3,031.57 ft (2005-12-30), highest 3,034.82 ft (2005-06-13), average 3,032.76 ft, 365 days measured2006: lowest 3,027.81 ft (2006-08-18), highest 3,031.58 ft (2006-01-01), average 3,029.45 ft, 365 days measured2007: lowest 3,026.63 ft (2007-12-31), highest 3,030.56 ft (2007-06-05), average 3,028.54 ft, 365 days measured2008: lowest 3,020.82 ft (2008-12-31), highest 3,026.60 ft (2008-01-01), average 3,023.80 ft, 366 days measured2009: lowest 3,019.53 ft (2009-04-15), highest 3,022.58 ft (2009-08-16), average 3,021.05 ft, 365 days measured2010: lowest 3,019.98 ft (2010-04-14), highest 3,025.51 ft (2010-04-22), average 3,022.75 ft, 365 days measured2011: lowest 3,014.01 ft (2011-12-12), highest 3,021.68 ft (2011-01-01), average 3,017.73 ft, 365 days measured2012: lowest 3,007.48 ft (2012-12-30), highest 3,014.00 ft (2012-01-01), average 3,011.11 ft, 355 days measured2013: lowest 3,003.16 ft (2013-12-31), highest 3,007.49 ft (2013-01-01), average 3,005.25 ft, 365 days measured2014: lowest 3,001.09 ft (2014-05-21), highest 3,010.99 ft (2014-06-26), average 3,006.78 ft, 365 days measured2015: lowest 3,008.92 ft (2015-04-21), highest 3,029.74 ft (2015-07-13), average 3,021.16 ft, 365 days measured2016: lowest 3,026.22 ft (2016-12-30), highest 3,028.73 ft (2016-01-14), average 3,027.49 ft, 366 days measured2017: lowest 3,025.57 ft (2017-08-11), highest 3,027.12 ft (2017-08-27), average 3,026.35 ft, 365 days measured2018: lowest 3,021.75 ft (2018-12-25), highest 3,025.94 ft (2018-01-01), average 3,023.80 ft, 365 days measured2019: lowest 3,019.55 ft (2019-12-27), highest 3,021.97 ft (2019-06-05), average 3,020.88 ft, 362 days measured2020: lowest 3,014.13 ft (2020-12-31), highest 3,019.77 ft (2020-01-01), average 3,017.25 ft, 361 days measured2021: lowest 3,010.71 ft (2021-12-31), highest 3,014.12 ft (2021-01-01), average 3,012.71 ft, 365 days measured2022: lowest 3,006.31 ft (2022-12-30), highest 3,010.72 ft (2022-01-01), average 3,008.37 ft, 365 days measured2023: lowest 3,004.94 ft (2023-05-12), highest 3,018.42 ft (2023-06-08), average 3,012.14 ft, 365 days measured2024: lowest 3,012.28 ft (2024-11-01), highest 3,015.17 ft (2024-01-05), average 3,014.27 ft, 366 days measured2025: lowest 3,013.90 ft (2025-04-22), highest 3,024.45 ft (2025-07-15), average 3,019.88 ft, 364 days measured2026: lowest 3,018.32 ft (2026-10-21), highest 3,022.11 ft (2026-01-01), average 3,020.55 ft, 295 days measured
2,9993,0093,0183,0283,038199920062013202020261999: lowest 3,035.25 ft (1999-05-25), highest 3,035.46 ft (1999-06-25), average 3,035.36 ft, 2 days measured2001: lowest 3,027.72 ft (2001-12-31), highest 3,029.21 ft (2001-09-30), average 3,028.36 ft, 93 days measured2002: lowest 3,022.12 ft (2002-10-01), highest 3,027.74 ft (2002-01-05), average 3,025.29 ft, 365 days measured2003: lowest 3,017.67 ft (2003-12-31), highest 3,025.99 ft (2003-01-01), average 3,022.19 ft, 365 days measured2004: lowest 3,015.98 ft (2004-06-16), highest 3,032.57 ft (2004-11-26), average 3,022.20 ft, 366 days measured2005: lowest 3,031.57 ft (2005-12-30), highest 3,034.82 ft (2005-06-13), average 3,032.76 ft, 365 days measured2006: lowest 3,027.81 ft (2006-08-18), highest 3,031.58 ft (2006-01-01), average 3,029.45 ft, 365 days measured2007: lowest 3,026.63 ft (2007-12-31), highest 3,030.56 ft (2007-06-05), average 3,028.54 ft, 365 days measured2008: lowest 3,020.82 ft (2008-12-31), highest 3,026.60 ft (2008-01-01), average 3,023.80 ft, 366 days measured2009: lowest 3,019.53 ft (2009-04-15), highest 3,022.58 ft (2009-08-16), average 3,021.05 ft, 365 days measured2010: lowest 3,019.98 ft (2010-04-14), highest 3,025.51 ft (2010-04-22), average 3,022.75 ft, 365 days measured2011: lowest 3,014.01 ft (2011-12-12), highest 3,021.68 ft (2011-01-01), average 3,017.73 ft, 365 days measured2012: lowest 3,007.48 ft (2012-12-30), highest 3,014.00 ft (2012-01-01), average 3,011.11 ft, 355 days measured2013: lowest 3,003.16 ft (2013-12-31), highest 3,007.49 ft (2013-01-01), average 3,005.25 ft, 365 days measured2014: lowest 3,001.09 ft (2014-05-21), highest 3,010.99 ft (2014-06-26), average 3,006.78 ft, 365 days measured2015: lowest 3,008.92 ft (2015-04-21), highest 3,029.74 ft (2015-07-13), average 3,021.16 ft, 365 days measured2016: lowest 3,026.22 ft (2016-12-30), highest 3,028.73 ft (2016-01-14), average 3,027.49 ft, 366 days measured2017: lowest 3,025.57 ft (2017-08-11), highest 3,027.12 ft (2017-08-27), average 3,026.35 ft, 365 days measured2018: lowest 3,021.75 ft (2018-12-25), highest 3,025.94 ft (2018-01-01), average 3,023.80 ft, 365 days measured2019: lowest 3,019.55 ft (2019-12-27), highest 3,021.97 ft (2019-06-05), average 3,020.88 ft, 362 days measured2020: lowest 3,014.13 ft (2020-12-31), highest 3,019.77 ft (2020-01-01), average 3,017.25 ft, 361 days measured2021: lowest 3,010.71 ft (2021-12-31), highest 3,014.12 ft (2021-01-01), average 3,012.71 ft, 365 days measured2022: lowest 3,006.31 ft (2022-12-30), highest 3,010.72 ft (2022-01-01), average 3,008.37 ft, 365 days measured2023: lowest 3,004.94 ft (2023-05-12), highest 3,018.42 ft (2023-06-08), average 3,012.14 ft, 365 days measured2024: lowest 3,012.28 ft (2024-11-01), highest 3,015.17 ft (2024-01-05), average 3,014.27 ft, 366 days measured2025: lowest 3,013.90 ft (2025-04-22), highest 3,024.45 ft (2025-07-15), average 3,019.88 ft, 364 days measured2026: lowest 3,018.32 ft (2026-10-21), highest 3,022.11 ft (2026-01-01), average 3,020.55 ft, 295 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.

  • 20143,001.09 ft on May 21
  • 20133,003.16 ft on Dec 31
  • 20233,004.94 ft on May 12
  • 20223,006.31 ft on Dec 30
  • 20123,007.48 ft on Dec 30

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (295 days)3,020.553,018.32Oct 213,022.11Jan 1
20253,019.883,013.90Apr 223,024.45Jul 15
20243,014.273,012.28Nov 13,015.17Jan 5
20233,012.143,004.94May 123,018.42Jun 8
20223,008.373,006.31Dec 303,010.72Jan 1
20213,012.713,010.71Dec 313,014.12Jan 1
20203,017.253,014.13Dec 313,019.77Jan 1
20193,020.883,019.55Dec 273,021.97Jun 5
20183,023.803,021.75Dec 253,025.94Jan 1
20173,026.353,025.57Aug 113,027.12Aug 27
20163,027.493,026.22Dec 303,028.73Jan 14
20153,021.163,008.92Apr 213,029.74Jul 13
20143,006.783,001.09May 213,010.99Jun 26
20133,005.253,003.16Dec 313,007.49Jan 1
20123,011.113,007.48Dec 303,014.00Jan 1
20113,017.733,014.01Dec 123,021.68Jan 1
20103,022.753,019.98Apr 143,025.51Apr 22
20093,021.053,019.53Apr 153,022.58Aug 16
20083,023.803,020.82Dec 313,026.60Jan 1
20073,028.543,026.63Dec 313,030.56Jun 5
20063,029.453,027.81Aug 183,031.58Jan 1
20053,032.763,031.57Dec 303,034.82Jun 13
20043,022.203,015.98Jun 163,032.57Nov 26
20033,022.193,017.67Dec 313,025.99Jan 1
20023,025.293,022.12Oct 13,027.74Jan 5
2001 (93 days)3,028.363,027.72Dec 313,029.21Sep 30
1999 (2 days)3,035.363,035.25May 253,035.46Jun 25

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

Monthly averages

MonthAverageLowestHighest
January3,019.613,002.883,032.49
February3,019.433,002.643,032.54
March3,019.213,002.253,032.48
April3,019.083,001.663,032.32
May3,019.413,001.093,035.25
June3,020.603,001.193,035.46
July3,020.743,003.933,034.36
August3,020.183,003.733,033.94
September3,019.833,004.323,033.65
October3,020.203,003.833,032.93
November3,020.013,003.453,032.57
December3,019.833,003.163,032.52

Download

Daily levels as CSV (9,136 rows; credit the original agencies listed below)