Country: Canada
United StatesCanadaUnited Kingdom

Tobin Lake water level history

Daily records since 1962 · Level today: 313.600 m

Highest on record
314.529 m
Jul 29, 1963
Lowest on record
293.004 m
Sep 2, 1962
Today
313.600 m
Oct 23, 2026
Years of data
64
since 1962

In short

Across 62 complete years, 1963 had the lowest average level (311.844 m) and 2024 the highest (313.551 m).

On average the lake is lowest in April (312.801 m) and highest in July (313.376 m).

Tobin Lake level, all years

Loading chart…

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

Each year's lowest and highest level

2922983043103161962197019781986199420022010201820261962: lowest 293.00 m (1962-09-02), highest 307.18 m (1962-12-31), average 302.21 m, 126 days measured1963: lowest 307.22 m (1963-01-01), highest 314.53 m (1963-07-29), average 311.84 m, 365 days measured1964: lowest 311.22 m (1964-04-14), highest 313.76 m (1964-08-12), average 312.98 m, 366 days measured1965: lowest 311.32 m (1965-04-17), highest 313.76 m (1965-10-05), average 313.14 m, 365 days measured1966: lowest 311.32 m (1966-04-03), highest 313.72 m (1966-08-05), average 313.07 m, 365 days measured1967: lowest 311.34 m (1967-04-29), highest 313.73 m (1967-09-18), average 312.90 m, 365 days measured1968: lowest 312.41 m (1968-05-10), highest 313.65 m (1968-11-24), average 313.19 m, 366 days measured1969: lowest 311.75 m (1969-05-23), highest 313.68 m (1969-04-20), average 312.96 m, 365 days measured1970: lowest 311.51 m (1970-06-12), highest 313.65 m (1970-07-19), average 312.84 m, 365 days measured1971: lowest 311.20 m (1971-04-16), highest 313.63 m (1971-10-23), average 312.78 m, 365 days measured1972: lowest 311.36 m (1972-06-09), highest 313.60 m (1972-07-16), average 312.82 m, 366 days measured1973: lowest 311.82 m (1973-06-25), highest 313.57 m (1973-11-04), average 312.92 m, 365 days measured1974: lowest 311.47 m (1974-04-13), highest 313.61 m (1974-05-10), average 313.16 m, 365 days measured1975: lowest 311.44 m (1975-04-23), highest 313.64 m (1975-09-01), average 313.05 m, 365 days measured1976: lowest 311.73 m (1976-04-12), highest 313.55 m (1976-02-02), average 313.14 m, 366 days measured1977: lowest 312.96 m (1977-06-06), highest 313.62 m (1977-01-24), average 313.36 m, 365 days measured1978: lowest 311.52 m (1978-06-10), highest 313.54 m (1978-12-31), average 312.96 m, 365 days measured1979: lowest 312.05 m (1979-04-05), highest 313.63 m (1979-05-05), average 313.07 m, 365 days measured1980: lowest 311.89 m (1980-06-11), highest 313.53 m (1980-01-05), average 313.11 m, 366 days measured1981: lowest 312.45 m (1981-04-04), highest 313.59 m (1981-08-16), average 313.21 m, 365 days measured1982: lowest 311.77 m (1982-04-23), highest 313.50 m (1982-10-27), average 313.02 m, 365 days measured1983: lowest 312.15 m (1983-04-15), highest 313.63 m (1983-01-11), average 313.09 m, 365 days measured1984: lowest 312.64 m (1984-04-05), highest 313.64 m (1984-12-10), average 313.34 m, 366 days measured1985: lowest 312.16 m (1985-04-13), highest 313.61 m (1985-02-25), average 313.25 m, 365 days measured1986: lowest 311.88 m (1986-07-23), highest 313.74 m (1986-12-31), average 313.43 m, 211 days measured1987: lowest 312.18 m (1987-04-02), highest 313.76 m (1987-01-04), average 313.30 m, 365 days measured1988: lowest 312.56 m (1988-04-05), highest 313.72 m (1988-08-05), average 313.39 m, 366 days measured1989: lowest 312.82 m (1989-04-17), highest 313.67 m (1989-07-29), average 313.38 m, 365 days measured1990: lowest 312.13 m (1990-03-30), highest 313.65 m (1990-01-20), average 313.34 m, 365 days measured1991: lowest 312.08 m (1991-04-11), highest 313.68 m (1991-01-15), average 313.21 m, 365 days measured1992: lowest 312.58 m (1992-03-29), highest 313.66 m (1992-01-04), average 313.34 m, 366 days measured1993: lowest 312.77 m (1993-04-05), highest 313.65 m (1993-10-23), average 313.37 m, 365 days measured1994: lowest 312.22 m (1994-04-08), highest 313.64 m (1994-06-21), average 313.22 m, 365 days measured1995: lowest 312.03 m (1995-06-11), highest 313.68 m (1995-08-08), average 313.14 m, 365 days measured1996: lowest 312.09 m (1996-04-09), highest 313.65 m (1996-06-29), average 313.19 m, 366 days measured1997: lowest 311.86 m (1997-04-11), highest 313.74 m (1997-10-08), average 313.15 m, 365 days measured1998: lowest 312.17 m (1998-03-16), highest 313.62 m (1998-10-18), average 313.19 m, 365 days measured1999: lowest 312.09 m (1999-04-09), highest 313.61 m (1999-10-09), average 313.14 m, 365 days measured2000: lowest 312.39 m (2000-02-14), highest 313.62 m (2000-08-09), average 313.24 m, 366 days measured2001: lowest 312.71 m (2001-12-17), highest 313.61 m (2001-06-14), average 313.30 m, 365 days measured2002: lowest 312.61 m (2002-04-15), highest 313.66 m (2002-08-16), average 313.25 m, 365 days measured2003: lowest 312.72 m (2003-11-13), highest 313.64 m (2003-07-02), average 313.17 m, 365 days measured2004: lowest 312.87 m (2004-02-22), highest 313.67 m (2004-07-06), average 313.39 m, 366 days measured2005: lowest 312.44 m (2005-06-26), highest 313.64 m (2005-01-03), average 313.40 m, 365 days measured2006: lowest 312.23 m (2006-04-13), highest 313.62 m (2006-01-04), average 313.27 m, 365 days measured2007: lowest 311.75 m (2007-04-13), highest 313.59 m (2007-01-03), average 313.27 m, 365 days measured2008: lowest 312.96 m (2008-04-10), highest 313.62 m (2008-07-24), average 313.41 m, 366 days measured2009: lowest 312.99 m (2009-04-13), highest 313.64 m (2009-01-20), average 313.44 m, 365 days measured2010: lowest 313.19 m (2010-06-20), highest 313.66 m (2010-10-12), average 313.51 m, 365 days measured2011: lowest 311.96 m (2011-04-07), highest 313.66 m (2011-05-14), average 313.39 m, 365 days measured2012: lowest 313.20 m (2012-06-14), highest 313.66 m (2012-06-28), average 313.50 m, 366 days measured2013: lowest 312.33 m (2013-04-30), highest 313.63 m (2013-08-23), average 313.36 m, 365 days measured2014: lowest 312.33 m (2014-04-23), highest 313.64 m (2014-05-30), average 313.27 m, 365 days measured2015: lowest 312.61 m (2015-04-06), highest 313.65 m (2015-06-30), average 313.47 m, 365 days measured2016: lowest 313.10 m (2016-08-31), highest 313.65 m (2016-04-17), average 313.52 m, 366 days measured2017: lowest 312.81 m (2017-04-07), highest 313.64 m (2017-05-20), average 313.48 m, 365 days measured2018: lowest 312.47 m (2018-04-21), highest 313.66 m (2018-05-12), average 313.47 m, 365 days measured2019: lowest 313.06 m (2019-04-08), highest 313.64 m (2019-07-17), average 313.50 m, 365 days measured2020: lowest 312.45 m (2020-04-26), highest 313.65 m (2020-11-08), average 313.50 m, 366 days measured2021: lowest 313.10 m (2021-04-01), highest 313.62 m (2021-01-23), average 313.46 m, 365 days measured2022: lowest 313.20 m (2022-04-05), highest 313.66 m (2022-09-21), average 313.52 m, 365 days measured2023: lowest 312.89 m (2023-04-14), highest 313.68 m (2023-01-06), average 313.50 m, 365 days measured2024: lowest 313.32 m (2024-12-04), highest 313.67 m (2024-01-03), average 313.55 m, 366 days measured2025: lowest 313.07 m (2025-04-07), highest 313.68 m (2025-08-21), average 313.55 m, 365 days measured2026: lowest 313.52 m (2026-09-24), highest 313.62 m (2026-01-02), average 313.58 m, 43 days measured
292298304310316196219781994201020261962: lowest 293.00 m (1962-09-02), highest 307.18 m (1962-12-31), average 302.21 m, 126 days measured1963: lowest 307.22 m (1963-01-01), highest 314.53 m (1963-07-29), average 311.84 m, 365 days measured1964: lowest 311.22 m (1964-04-14), highest 313.76 m (1964-08-12), average 312.98 m, 366 days measured1965: lowest 311.32 m (1965-04-17), highest 313.76 m (1965-10-05), average 313.14 m, 365 days measured1966: lowest 311.32 m (1966-04-03), highest 313.72 m (1966-08-05), average 313.07 m, 365 days measured1967: lowest 311.34 m (1967-04-29), highest 313.73 m (1967-09-18), average 312.90 m, 365 days measured1968: lowest 312.41 m (1968-05-10), highest 313.65 m (1968-11-24), average 313.19 m, 366 days measured1969: lowest 311.75 m (1969-05-23), highest 313.68 m (1969-04-20), average 312.96 m, 365 days measured1970: lowest 311.51 m (1970-06-12), highest 313.65 m (1970-07-19), average 312.84 m, 365 days measured1971: lowest 311.20 m (1971-04-16), highest 313.63 m (1971-10-23), average 312.78 m, 365 days measured1972: lowest 311.36 m (1972-06-09), highest 313.60 m (1972-07-16), average 312.82 m, 366 days measured1973: lowest 311.82 m (1973-06-25), highest 313.57 m (1973-11-04), average 312.92 m, 365 days measured1974: lowest 311.47 m (1974-04-13), highest 313.61 m (1974-05-10), average 313.16 m, 365 days measured1975: lowest 311.44 m (1975-04-23), highest 313.64 m (1975-09-01), average 313.05 m, 365 days measured1976: lowest 311.73 m (1976-04-12), highest 313.55 m (1976-02-02), average 313.14 m, 366 days measured1977: lowest 312.96 m (1977-06-06), highest 313.62 m (1977-01-24), average 313.36 m, 365 days measured1978: lowest 311.52 m (1978-06-10), highest 313.54 m (1978-12-31), average 312.96 m, 365 days measured1979: lowest 312.05 m (1979-04-05), highest 313.63 m (1979-05-05), average 313.07 m, 365 days measured1980: lowest 311.89 m (1980-06-11), highest 313.53 m (1980-01-05), average 313.11 m, 366 days measured1981: lowest 312.45 m (1981-04-04), highest 313.59 m (1981-08-16), average 313.21 m, 365 days measured1982: lowest 311.77 m (1982-04-23), highest 313.50 m (1982-10-27), average 313.02 m, 365 days measured1983: lowest 312.15 m (1983-04-15), highest 313.63 m (1983-01-11), average 313.09 m, 365 days measured1984: lowest 312.64 m (1984-04-05), highest 313.64 m (1984-12-10), average 313.34 m, 366 days measured1985: lowest 312.16 m (1985-04-13), highest 313.61 m (1985-02-25), average 313.25 m, 365 days measured1986: lowest 311.88 m (1986-07-23), highest 313.74 m (1986-12-31), average 313.43 m, 211 days measured1987: lowest 312.18 m (1987-04-02), highest 313.76 m (1987-01-04), average 313.30 m, 365 days measured1988: lowest 312.56 m (1988-04-05), highest 313.72 m (1988-08-05), average 313.39 m, 366 days measured1989: lowest 312.82 m (1989-04-17), highest 313.67 m (1989-07-29), average 313.38 m, 365 days measured1990: lowest 312.13 m (1990-03-30), highest 313.65 m (1990-01-20), average 313.34 m, 365 days measured1991: lowest 312.08 m (1991-04-11), highest 313.68 m (1991-01-15), average 313.21 m, 365 days measured1992: lowest 312.58 m (1992-03-29), highest 313.66 m (1992-01-04), average 313.34 m, 366 days measured1993: lowest 312.77 m (1993-04-05), highest 313.65 m (1993-10-23), average 313.37 m, 365 days measured1994: lowest 312.22 m (1994-04-08), highest 313.64 m (1994-06-21), average 313.22 m, 365 days measured1995: lowest 312.03 m (1995-06-11), highest 313.68 m (1995-08-08), average 313.14 m, 365 days measured1996: lowest 312.09 m (1996-04-09), highest 313.65 m (1996-06-29), average 313.19 m, 366 days measured1997: lowest 311.86 m (1997-04-11), highest 313.74 m (1997-10-08), average 313.15 m, 365 days measured1998: lowest 312.17 m (1998-03-16), highest 313.62 m (1998-10-18), average 313.19 m, 365 days measured1999: lowest 312.09 m (1999-04-09), highest 313.61 m (1999-10-09), average 313.14 m, 365 days measured2000: lowest 312.39 m (2000-02-14), highest 313.62 m (2000-08-09), average 313.24 m, 366 days measured2001: lowest 312.71 m (2001-12-17), highest 313.61 m (2001-06-14), average 313.30 m, 365 days measured2002: lowest 312.61 m (2002-04-15), highest 313.66 m (2002-08-16), average 313.25 m, 365 days measured2003: lowest 312.72 m (2003-11-13), highest 313.64 m (2003-07-02), average 313.17 m, 365 days measured2004: lowest 312.87 m (2004-02-22), highest 313.67 m (2004-07-06), average 313.39 m, 366 days measured2005: lowest 312.44 m (2005-06-26), highest 313.64 m (2005-01-03), average 313.40 m, 365 days measured2006: lowest 312.23 m (2006-04-13), highest 313.62 m (2006-01-04), average 313.27 m, 365 days measured2007: lowest 311.75 m (2007-04-13), highest 313.59 m (2007-01-03), average 313.27 m, 365 days measured2008: lowest 312.96 m (2008-04-10), highest 313.62 m (2008-07-24), average 313.41 m, 366 days measured2009: lowest 312.99 m (2009-04-13), highest 313.64 m (2009-01-20), average 313.44 m, 365 days measured2010: lowest 313.19 m (2010-06-20), highest 313.66 m (2010-10-12), average 313.51 m, 365 days measured2011: lowest 311.96 m (2011-04-07), highest 313.66 m (2011-05-14), average 313.39 m, 365 days measured2012: lowest 313.20 m (2012-06-14), highest 313.66 m (2012-06-28), average 313.50 m, 366 days measured2013: lowest 312.33 m (2013-04-30), highest 313.63 m (2013-08-23), average 313.36 m, 365 days measured2014: lowest 312.33 m (2014-04-23), highest 313.64 m (2014-05-30), average 313.27 m, 365 days measured2015: lowest 312.61 m (2015-04-06), highest 313.65 m (2015-06-30), average 313.47 m, 365 days measured2016: lowest 313.10 m (2016-08-31), highest 313.65 m (2016-04-17), average 313.52 m, 366 days measured2017: lowest 312.81 m (2017-04-07), highest 313.64 m (2017-05-20), average 313.48 m, 365 days measured2018: lowest 312.47 m (2018-04-21), highest 313.66 m (2018-05-12), average 313.47 m, 365 days measured2019: lowest 313.06 m (2019-04-08), highest 313.64 m (2019-07-17), average 313.50 m, 365 days measured2020: lowest 312.45 m (2020-04-26), highest 313.65 m (2020-11-08), average 313.50 m, 366 days measured2021: lowest 313.10 m (2021-04-01), highest 313.62 m (2021-01-23), average 313.46 m, 365 days measured2022: lowest 313.20 m (2022-04-05), highest 313.66 m (2022-09-21), average 313.52 m, 365 days measured2023: lowest 312.89 m (2023-04-14), highest 313.68 m (2023-01-06), average 313.50 m, 365 days measured2024: lowest 313.32 m (2024-12-04), highest 313.67 m (2024-01-03), average 313.55 m, 366 days measured2025: lowest 313.07 m (2025-04-07), highest 313.68 m (2025-08-21), average 313.55 m, 365 days measured2026: lowest 313.52 m (2026-09-24), highest 313.62 m (2026-01-02), average 313.58 m, 43 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.

  • 1963307.220 m on Jan 1
  • 1971311.195 m on Apr 16
  • 1964311.216 m on Apr 14
  • 1966311.323 m on Apr 3
  • 1965311.323 m on Apr 17

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (43 days)313.576313.524Sep 24313.623Jan 2
2025313.546313.067Apr 7313.675Aug 21
2024313.551313.317Dec 4313.665Jan 3
2023313.498312.893Apr 14313.679Jan 6
2022313.521313.199Apr 5313.661Sep 21
2021313.461313.095Apr 1313.618Jan 23
2020313.502312.446Apr 26313.652Nov 8
2019313.504313.064Apr 8313.635Jul 17
2018313.467312.473Apr 21313.655May 12
2017313.480312.812Apr 7313.644May 20
2016313.517313.096Aug 31313.652Apr 17
2015313.468312.614Apr 6313.652Jun 30
2014313.266312.332Apr 23313.641May 30
2013313.356312.328Apr 30313.631Aug 23
2012313.497313.204Jun 14313.655Jun 28
2011313.394311.957Apr 7313.661May 14
2010313.507313.192Jun 20313.664Oct 12
2009313.438312.992Apr 13313.642Jan 20
2008313.413312.964Apr 10313.625Jul 24
2007313.272311.750Apr 13313.591Jan 3
2006313.265312.226Apr 13313.619Jan 4
2005313.403312.441Jun 26313.637Jan 3
2004313.390312.866Feb 22313.667Jul 6
2003313.171312.719Nov 13313.636Jul 2
2002313.248312.610Apr 15313.662Aug 16
2001313.298312.709Dec 17313.611Jun 14
2000313.237312.386Feb 14313.619Aug 9
1999313.136312.089Apr 9313.614Oct 9
1998313.192312.173Mar 16313.617Oct 18
1997313.148311.860Apr 11313.739Oct 8
1996313.186312.090Apr 9313.653Jun 29
1995313.144312.030Jun 11313.682Aug 8
1994313.224312.220Apr 8313.644Jun 21
1993313.374312.768Apr 5313.649Oct 23
1992313.338312.575Mar 29313.658Jan 4
1991313.209312.078Apr 11313.675Jan 15
1990313.337312.128Mar 30313.650Jan 20
1989313.384312.820Apr 17313.670Jul 29
1988313.390312.556Apr 5313.721Aug 5
1987313.296312.182Apr 2313.759Jan 4
1986 (211 days)313.432311.879Jul 23313.737Dec 31
1985313.254312.160Apr 13313.610Feb 25
1984313.338312.640Apr 5313.640Dec 10
1983313.088312.150Apr 15313.630Jan 11
1982313.019311.770Apr 23313.500Oct 27
1981313.214312.450Apr 4313.590Aug 16
1980313.112311.890Jun 11313.530Jan 5
1979313.065312.050Apr 5313.630May 5
1978312.965311.518Jun 10313.539Dec 31
1977313.360312.956Jun 6313.624Jan 24
1976313.141311.731Apr 12313.548Feb 2
1975313.054311.439Apr 23313.639Sep 1
1974313.159311.466Apr 13313.612May 10
1973312.918311.816Jun 25313.572Nov 4
1972312.816311.362Jun 9313.597Jul 16
1971312.777311.195Apr 16313.630Oct 23
1970312.838311.509Jun 12313.654Jul 19
1969312.959311.752May 23313.676Apr 20
1968313.189312.411May 10313.651Nov 24
1967312.896311.335Apr 29313.728Sep 18
1966313.072311.323Apr 3313.718Aug 5
1965313.143311.323Apr 17313.761Oct 5
1964312.985311.216Apr 14313.761Aug 12
1963311.844307.220Jan 1314.529Jul 29
1962 (126 days)302.207293.004Sep 2307.184Dec 31

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

Monthly averages

MonthAverageLowestHighest
January313.331307.220313.759
February313.209307.964313.709
March312.899308.729313.634
April312.801310.963313.715
May313.144311.173313.731
June313.106311.259313.715
July313.376311.609314.529
August313.376293.157314.017
September313.113293.004313.813
October313.257298.948313.773
November313.239304.983313.792
December313.188306.321313.737

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Daily levels as CSV (23,026 rows; credit the original agencies listed below)