Country: Canada
United StatesCanadaUnited Kingdom

Mitchell Reservoir water level history

Daily records since 1964 · Level today: 32.639 m

Highest on record
35.814 m
May 19, 1967
Lowest on record
29.809 m
Feb 28, 1971
Today
32.639 m
Oct 23, 2026
Years of data
63
since 1964

In short

On average the lake is lowest in January (32.887 m) and highest in May (33.992 m).

Mitchell Reservoir level, all years

Loading chart…

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

Each year's lowest and highest level

29313334361964197219801988199620042012202020261964: lowest 30.59 m (1964-07-08), highest 32.38 m (1964-04-15), average 31.60 m, 4 days measured1965: lowest 32.03 m (1965-10-31), highest 35.66 m (1965-04-16), average 34.09 m, 7 days measured1966: lowest 33.83 m (1966-03-28), highest 35.72 m (1966-03-31), average 34.70 m, 37 days measured1967: lowest 32.55 m (1967-10-28), highest 35.81 m (1967-05-19), average 34.17 m, 38 days measured1968: lowest 31.78 m (1968-10-29), highest 33.66 m (1968-03-09), average 32.68 m, 43 days measured1969: lowest 31.79 m (1969-02-28), highest 35.24 m (1969-04-22), average 33.54 m, 41 days measured1970: lowest 31.32 m (1970-07-08), highest 35.75 m (1970-05-04), average 34.23 m, 19 days measured1971: lowest 29.81 m (1971-02-28), highest 34.69 m (1971-05-04), average 33.51 m, 42 days measured1972: lowest 29.87 m (1972-02-29), highest 34.88 m (1972-03-29), average 33.80 m, 41 days measured1973: lowest 32.77 m (1973-11-08), highest 33.45 m (1973-04-27), average 33.12 m, 40 days measured1974: lowest 32.75 m (1974-02-25), highest 34.75 m (1974-05-28), average 34.01 m, 38 days measured1975: lowest 34.17 m (1975-02-25), highest 35.39 m (1975-05-07), average 34.75 m, 40 days measured1976: lowest 29.87 m (1976-10-05), highest 35.17 m (1976-04-07), average 33.27 m, 40 days measured1977: lowest 29.94 m (1977-07-31), highest 30.73 m (1977-05-31), average 30.48 m, 19 days measured1978: lowest 29.87 m (1978-02-25), highest 33.97 m (1978-05-31), average 32.53 m, 40 days measured1979: lowest 31.68 m (1979-02-25), highest 35.39 m (1979-04-18), average 34.22 m, 42 days measured1980: lowest 32.76 m (1980-10-31), highest 33.52 m (1980-04-09), average 33.20 m, 44 days measured1981: lowest 32.43 m (1981-10-31), highest 33.09 m (1981-03-25), average 32.86 m, 41 days measured1982: lowest 32.00 m (1982-02-25), highest 34.78 m (1982-06-27), average 33.72 m, 41 days measured1983: lowest 33.33 m (1983-11-01), highest 34.22 m (1983-05-17), average 33.77 m, 41 days measured1984: lowest 32.57 m (1984-10-30), highest 33.36 m (1984-04-30), average 33.00 m, 42 days measured1985: lowest 32.00 m (1985-03-20), highest 35.10 m (1985-05-06), average 33.68 m, 51 days measured1986: lowest 32.88 m (1986-02-05), highest 35.21 m (1986-03-06), average 34.32 m, 53 days measured1987: lowest 33.77 m (1987-02-28), highest 35.18 m (1987-04-07), average 34.32 m, 44 days measured1988: lowest 33.10 m (1988-11-02), highest 34.13 m (1988-04-15), average 33.61 m, 51 days measured1989: lowest 32.77 m (1989-10-31), highest 33.34 m (1989-06-07), average 33.10 m, 50 days measured1990: lowest 32.68 m (1990-02-22), highest 33.89 m (1990-05-28), average 33.53 m, 49 days measured1991: lowest 33.10 m (1991-02-25), highest 34.64 m (1991-07-07), average 33.89 m, 58 days measured1992: lowest 32.66 m (1992-10-17), highest 33.50 m (1992-03-07), average 33.13 m, 53 days measured1993: lowest 32.63 m (1993-02-17), highest 34.96 m (1993-03-28), average 34.46 m, 41 days measured1994: lowest 33.19 m (1994-11-01), highest 35.36 m (1994-03-23), average 34.31 m, 42 days measured1995: lowest 32.50 m (1995-11-03), highest 33.09 m (1995-05-11), average 32.88 m, 40 days measured1996: lowest 32.34 m (1996-02-20), highest 35.04 m (1996-03-31), average 34.05 m, 41 days measured1997: lowest 33.24 m (1997-02-25), highest 35.40 m (1997-04-09), average 34.33 m, 38 days measured1998: lowest 33.03 m (1998-11-04), highest 33.71 m (1998-03-25), average 33.45 m, 40 days measured1999: lowest 32.79 m (1999-11-02), highest 33.44 m (1999-05-18), average 33.14 m, 255 days measured2000: lowest 31.88 m (2000-11-06), highest 32.64 m (2000-04-23), average 32.31 m, 255 days measured2001: lowest 31.06 m (2001-10-19), highest 31.87 m (2001-04-20), average 31.54 m, 253 days measured2002: lowest 31.02 m (2002-02-12), highest 34.81 m (2002-06-13), average 33.30 m, 277 days measured2003: lowest 33.51 m (2003-10-27), highest 34.35 m (2003-05-14), average 33.99 m, 261 days measured2004: lowest 33.45 m (2004-11-02), highest 34.06 m (2004-04-18), average 33.77 m, 252 days measured2005: lowest 33.15 m (2005-10-25), highest 33.97 m (2005-04-18), average 33.57 m, 250 days measured2006: lowest 33.06 m (2006-02-22), highest 34.33 m (2006-04-10), average 33.79 m, 252 days measured2007: lowest 33.19 m (2007-03-11), highest 34.05 m (2007-06-07), average 33.72 m, 257 days measured2008: lowest 33.13 m (2008-03-09), highest 34.04 m (2008-06-15), average 33.60 m, 252 days measured2009: lowest 32.71 m (2009-10-13), highest 33.50 m (2009-04-25), average 33.19 m, 250 days measured2010: lowest 32.61 m (2010-02-18), highest 35.22 m (2010-06-22), average 34.22 m, 274 days measured2011: lowest 33.27 m (2011-04-23), highest 35.41 m (2011-04-29), average 34.40 m, 245 days measured2012: lowest 33.81 m (2012-03-04), highest 34.49 m (2012-06-15), average 34.21 m, 242 days measured2013: lowest 33.69 m (2013-03-13), highest 34.74 m (2013-06-05), average 34.44 m, 245 days measured2014: lowest 33.94 m (2014-03-11), highest 34.84 m (2014-05-06), average 34.29 m, 245 days measured2015: lowest 32.69 m (2015-10-31), highest 34.48 m (2015-03-28), average 33.52 m, 245 days measured2016: lowest 31.76 m (2016-11-02), highest 32.73 m (2016-04-15), average 32.39 m, 252 days measured2017: lowest 33.53 m (2017-11-06), highest 34.79 m (2017-04-26), average 34.22 m, 251 days measured2018: lowest 32.86 m (2018-10-31), highest 35.40 m (2018-04-21), average 33.78 m, 245 days measured2019: lowest 31.97 m (2019-03-20), highest 32.87 m (2019-05-22), average 32.54 m, 232 days measured2020: lowest 32.00 m (2020-03-08), highest 35.27 m (2020-04-24), average 33.88 m, 249 days measured2021: lowest 33.60 m (2021-11-02), highest 34.71 m (2021-05-27), average 34.08 m, 252 days measured2022: lowest 33.27 m (2022-10-21), highest 34.28 m (2022-06-22), average 33.74 m, 258 days measured2023: lowest 33.29 m (2023-03-03), highest 34.95 m (2023-04-28), average 34.10 m, 245 days measured2024: lowest 33.11 m (2024-11-03), highest 34.16 m (2024-05-10), average 33.72 m, 260 days measured2025: lowest 33.06 m (2025-11-04), highest 34.07 m (2025-04-24), average 33.47 m, 253 days measured2026: lowest 32.64 m (2026-10-21), highest 32.77 m (2026-09-22), average 32.71 m, 30 days measured
2931333436196419801996201220261964: lowest 30.59 m (1964-07-08), highest 32.38 m (1964-04-15), average 31.60 m, 4 days measured1965: lowest 32.03 m (1965-10-31), highest 35.66 m (1965-04-16), average 34.09 m, 7 days measured1966: lowest 33.83 m (1966-03-28), highest 35.72 m (1966-03-31), average 34.70 m, 37 days measured1967: lowest 32.55 m (1967-10-28), highest 35.81 m (1967-05-19), average 34.17 m, 38 days measured1968: lowest 31.78 m (1968-10-29), highest 33.66 m (1968-03-09), average 32.68 m, 43 days measured1969: lowest 31.79 m (1969-02-28), highest 35.24 m (1969-04-22), average 33.54 m, 41 days measured1970: lowest 31.32 m (1970-07-08), highest 35.75 m (1970-05-04), average 34.23 m, 19 days measured1971: lowest 29.81 m (1971-02-28), highest 34.69 m (1971-05-04), average 33.51 m, 42 days measured1972: lowest 29.87 m (1972-02-29), highest 34.88 m (1972-03-29), average 33.80 m, 41 days measured1973: lowest 32.77 m (1973-11-08), highest 33.45 m (1973-04-27), average 33.12 m, 40 days measured1974: lowest 32.75 m (1974-02-25), highest 34.75 m (1974-05-28), average 34.01 m, 38 days measured1975: lowest 34.17 m (1975-02-25), highest 35.39 m (1975-05-07), average 34.75 m, 40 days measured1976: lowest 29.87 m (1976-10-05), highest 35.17 m (1976-04-07), average 33.27 m, 40 days measured1977: lowest 29.94 m (1977-07-31), highest 30.73 m (1977-05-31), average 30.48 m, 19 days measured1978: lowest 29.87 m (1978-02-25), highest 33.97 m (1978-05-31), average 32.53 m, 40 days measured1979: lowest 31.68 m (1979-02-25), highest 35.39 m (1979-04-18), average 34.22 m, 42 days measured1980: lowest 32.76 m (1980-10-31), highest 33.52 m (1980-04-09), average 33.20 m, 44 days measured1981: lowest 32.43 m (1981-10-31), highest 33.09 m (1981-03-25), average 32.86 m, 41 days measured1982: lowest 32.00 m (1982-02-25), highest 34.78 m (1982-06-27), average 33.72 m, 41 days measured1983: lowest 33.33 m (1983-11-01), highest 34.22 m (1983-05-17), average 33.77 m, 41 days measured1984: lowest 32.57 m (1984-10-30), highest 33.36 m (1984-04-30), average 33.00 m, 42 days measured1985: lowest 32.00 m (1985-03-20), highest 35.10 m (1985-05-06), average 33.68 m, 51 days measured1986: lowest 32.88 m (1986-02-05), highest 35.21 m (1986-03-06), average 34.32 m, 53 days measured1987: lowest 33.77 m (1987-02-28), highest 35.18 m (1987-04-07), average 34.32 m, 44 days measured1988: lowest 33.10 m (1988-11-02), highest 34.13 m (1988-04-15), average 33.61 m, 51 days measured1989: lowest 32.77 m (1989-10-31), highest 33.34 m (1989-06-07), average 33.10 m, 50 days measured1990: lowest 32.68 m (1990-02-22), highest 33.89 m (1990-05-28), average 33.53 m, 49 days measured1991: lowest 33.10 m (1991-02-25), highest 34.64 m (1991-07-07), average 33.89 m, 58 days measured1992: lowest 32.66 m (1992-10-17), highest 33.50 m (1992-03-07), average 33.13 m, 53 days measured1993: lowest 32.63 m (1993-02-17), highest 34.96 m (1993-03-28), average 34.46 m, 41 days measured1994: lowest 33.19 m (1994-11-01), highest 35.36 m (1994-03-23), average 34.31 m, 42 days measured1995: lowest 32.50 m (1995-11-03), highest 33.09 m (1995-05-11), average 32.88 m, 40 days measured1996: lowest 32.34 m (1996-02-20), highest 35.04 m (1996-03-31), average 34.05 m, 41 days measured1997: lowest 33.24 m (1997-02-25), highest 35.40 m (1997-04-09), average 34.33 m, 38 days measured1998: lowest 33.03 m (1998-11-04), highest 33.71 m (1998-03-25), average 33.45 m, 40 days measured1999: lowest 32.79 m (1999-11-02), highest 33.44 m (1999-05-18), average 33.14 m, 255 days measured2000: lowest 31.88 m (2000-11-06), highest 32.64 m (2000-04-23), average 32.31 m, 255 days measured2001: lowest 31.06 m (2001-10-19), highest 31.87 m (2001-04-20), average 31.54 m, 253 days measured2002: lowest 31.02 m (2002-02-12), highest 34.81 m (2002-06-13), average 33.30 m, 277 days measured2003: lowest 33.51 m (2003-10-27), highest 34.35 m (2003-05-14), average 33.99 m, 261 days measured2004: lowest 33.45 m (2004-11-02), highest 34.06 m (2004-04-18), average 33.77 m, 252 days measured2005: lowest 33.15 m (2005-10-25), highest 33.97 m (2005-04-18), average 33.57 m, 250 days measured2006: lowest 33.06 m (2006-02-22), highest 34.33 m (2006-04-10), average 33.79 m, 252 days measured2007: lowest 33.19 m (2007-03-11), highest 34.05 m (2007-06-07), average 33.72 m, 257 days measured2008: lowest 33.13 m (2008-03-09), highest 34.04 m (2008-06-15), average 33.60 m, 252 days measured2009: lowest 32.71 m (2009-10-13), highest 33.50 m (2009-04-25), average 33.19 m, 250 days measured2010: lowest 32.61 m (2010-02-18), highest 35.22 m (2010-06-22), average 34.22 m, 274 days measured2011: lowest 33.27 m (2011-04-23), highest 35.41 m (2011-04-29), average 34.40 m, 245 days measured2012: lowest 33.81 m (2012-03-04), highest 34.49 m (2012-06-15), average 34.21 m, 242 days measured2013: lowest 33.69 m (2013-03-13), highest 34.74 m (2013-06-05), average 34.44 m, 245 days measured2014: lowest 33.94 m (2014-03-11), highest 34.84 m (2014-05-06), average 34.29 m, 245 days measured2015: lowest 32.69 m (2015-10-31), highest 34.48 m (2015-03-28), average 33.52 m, 245 days measured2016: lowest 31.76 m (2016-11-02), highest 32.73 m (2016-04-15), average 32.39 m, 252 days measured2017: lowest 33.53 m (2017-11-06), highest 34.79 m (2017-04-26), average 34.22 m, 251 days measured2018: lowest 32.86 m (2018-10-31), highest 35.40 m (2018-04-21), average 33.78 m, 245 days measured2019: lowest 31.97 m (2019-03-20), highest 32.87 m (2019-05-22), average 32.54 m, 232 days measured2020: lowest 32.00 m (2020-03-08), highest 35.27 m (2020-04-24), average 33.88 m, 249 days measured2021: lowest 33.60 m (2021-11-02), highest 34.71 m (2021-05-27), average 34.08 m, 252 days measured2022: lowest 33.27 m (2022-10-21), highest 34.28 m (2022-06-22), average 33.74 m, 258 days measured2023: lowest 33.29 m (2023-03-03), highest 34.95 m (2023-04-28), average 34.10 m, 245 days measured2024: lowest 33.11 m (2024-11-03), highest 34.16 m (2024-05-10), average 33.72 m, 260 days measured2025: lowest 33.06 m (2025-11-04), highest 34.07 m (2025-04-24), average 33.47 m, 253 days measured2026: lowest 32.64 m (2026-10-21), highest 32.77 m (2026-09-22), average 32.71 m, 30 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.

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (30 days)32.70632.639Oct 2132.773Sep 22
2025 (253 days)33.46833.055Nov 434.067Apr 24
2024 (260 days)33.71833.112Nov 334.158May 10
2023 (245 days)34.10433.290Mar 334.953Apr 28
2022 (258 days)33.73633.274Oct 2134.282Jun 22
2021 (252 days)34.08033.598Nov 234.713May 27
2020 (249 days)33.87831.998Mar 835.271Apr 24
2019 (232 days)32.53831.966Mar 2032.866May 22
2018 (245 days)33.77832.859Oct 3135.401Apr 21
2017 (251 days)34.21733.528Nov 634.788Apr 26
2016 (252 days)32.39031.760Nov 232.729Apr 15
2015 (245 days)33.52232.688Oct 3134.478Mar 28
2014 (245 days)34.28833.943Mar 1134.837May 6
2013 (245 days)34.44033.690Mar 1334.741Jun 5
2012 (242 days)34.20733.811Mar 434.493Jun 15
2011 (245 days)34.40033.271Apr 2335.410Apr 29
2010 (274 days)34.22532.606Feb 1835.215Jun 22
2009 (250 days)33.19032.710Oct 1333.496Apr 25
2008 (252 days)33.60433.128Mar 934.044Jun 15
2007 (257 days)33.72133.189Mar 1134.045Jun 7
2006 (252 days)33.78933.059Feb 2234.331Apr 10
2005 (250 days)33.57033.147Oct 2533.971Apr 18
2004 (252 days)33.77133.447Nov 234.057Apr 18
2003 (261 days)33.98933.511Oct 2734.352May 14
2002 (277 days)33.29931.020Feb 1234.808Jun 13
2001 (253 days)31.54331.056Oct 1931.873Apr 20
2000 (255 days)32.31131.877Nov 632.643Apr 23
1999 (255 days)33.13632.794Nov 233.443May 18
1998 (40 days)33.44633.030Nov 433.712Mar 25
1997 (38 days)34.33233.240Feb 2535.401Apr 9
1996 (41 days)34.04632.341Feb 2035.040Mar 31
1995 (40 days)32.87732.498Nov 333.089May 11
1994 (42 days)34.30933.193Nov 135.355Mar 23
1993 (41 days)34.46332.635Feb 1734.955Mar 28
1992 (53 days)33.13232.660Oct 1733.500Mar 7
1991 (58 days)33.88833.100Feb 2534.635Jul 7
1990 (49 days)33.53232.681Feb 2233.885May 28
1989 (50 days)33.10232.766Oct 3133.341Jun 7
1988 (51 days)33.60633.096Nov 234.133Apr 15
1987 (44 days)34.32433.766Feb 2835.176Apr 7
1986 (53 days)34.31632.883Feb 535.205Mar 6
1985 (51 days)33.68231.996Mar 2035.098May 6
1984 (42 days)32.99832.569Oct 3033.361Apr 30
1983 (41 days)33.76833.327Nov 134.222May 17
1982 (41 days)33.71531.996Feb 2534.785Jun 27
1981 (41 days)32.85732.428Oct 3133.085Mar 25
1980 (44 days)33.19832.763Oct 3133.523Apr 9
1979 (42 days)34.22031.680Feb 2535.394Apr 18
1978 (40 days)32.53229.870Feb 2533.970May 31
1977 (19 days)30.48229.937Jul 3130.727May 31
1976 (40 days)33.27529.870Oct 535.174Apr 7
1975 (40 days)34.74634.174Feb 2535.387May 7
1974 (38 days)34.00632.751Feb 2534.747May 28
1973 (40 days)33.12032.769Nov 833.446Apr 27
1972 (41 days)33.79929.870Feb 2934.881Mar 29
1971 (42 days)33.51429.809Feb 2834.689May 4
1970 (19 days)34.22631.324Jul 835.753May 4
1969 (41 days)33.54431.791Feb 2835.241Apr 22
1968 (43 days)32.67731.778Oct 2933.656Mar 9
1967 (38 days)34.16932.553Oct 2835.814May 19
1966 (37 days)34.70433.833Mar 2835.723Mar 31
1965 (7 days)34.09132.034Oct 3135.662Apr 16
1964 (4 days)31.60230.587Jul 832.376Apr 15

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

Monthly averages

MonthAverageLowestHighest
January32.88732.88732.887
February32.91429.80934.710
March33.30229.80935.723
April33.72430.02335.692
May33.99230.65435.814
June33.92430.52335.509
July33.75229.93735.092
August33.55330.02334.895
September33.39429.89834.820
October33.24729.87034.753
November33.42131.76034.742

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Daily levels as CSV (8,228 rows; credit the original agencies listed below)