Country: Canada
United StatesCanadaUnited Kingdom

Southern Indian Lake water level history

Daily records since 1956 · Level today: 258.228 m

Highest on record
258.551 m
May 24, 2017
Lowest on record
254.310 m
Apr 13, 1957
Today
258.228 m
Oct 23, 2026
Years of data
70
since 1956

In short

Across 46 complete years, 1973 had the lowest average level (255.232 m) and 2017 the highest (258.134 m).

On average the lake is lowest in April (257.031 m) and highest in November (257.611 m).

Southern Indian Lake level, all years

Loading chart…

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

Each year's lowest and highest level

2542552562582591956196519741983199220012010201920261956: lowest 254.35 m (1956-10-11), highest 254.70 m (1956-08-29), average 254.55 m, 52 days measured1957: lowest 254.31 m (1957-04-13), highest 255.44 m (1957-08-23), average 255.09 m, 172 days measured1958: lowest 254.60 m (1958-03-25), highest 255.29 m (1958-10-24), average 255.03 m, 218 days measured1959: lowest 254.75 m (1959-03-17), highest 256.01 m (1959-09-09), average 255.61 m, 171 days measured1960: lowest 254.66 m (1960-04-09), highest 255.75 m (1960-09-21), average 255.24 m, 71 days measured1961: lowest 254.65 m (1961-05-02), highest 255.70 m (1961-07-19), average 255.29 m, 54 days measured1962: lowest 254.71 m (1962-03-23), highest 256.08 m (1962-06-29), average 255.65 m, 99 days measured1963: lowest 254.83 m (1963-01-23), highest 255.53 m (1963-06-11), average 255.34 m, 21 days measured1964: lowest 254.80 m (1964-03-18), highest 255.46 m (1964-09-22), average 255.20 m, 86 days measured1965: lowest 254.92 m (1965-03-23), highest 255.53 m (1965-06-15), average 255.22 m, 47 days measured1966: lowest 254.84 m (1966-04-30), highest 255.66 m (1966-07-10), average 255.38 m, 83 days measured1967: lowest 254.62 m (1967-02-20), highest 255.46 m (1967-07-11), average 255.10 m, 91 days measured1968: lowest 254.71 m (1968-01-02), highest 255.31 m (1968-06-24), average 255.03 m, 225 days measured1969: lowest 254.76 m (1969-04-01), highest 255.30 m (1969-11-27), average 254.93 m, 71 days measured1970: lowest 254.73 m (1970-04-15), highest 255.38 m (1970-10-02), average 255.18 m, 215 days measured1971: lowest 254.59 m (1971-04-09), highest 255.88 m (1971-10-27), average 255.07 m, 152 days measured1972: lowest 255.07 m (1972-03-27), highest 255.64 m (1972-06-30), average 255.30 m, 194 days measured1973: lowest 254.91 m (1973-04-15), highest 255.53 m (1973-11-02), average 255.23 m, 365 days measured1974: lowest 255.36 m (1974-04-05), highest 256.61 m (1974-08-26), average 256.01 m, 365 days measured1975: lowest 255.63 m (1975-04-25), highest 256.80 m (1975-07-08), average 256.18 m, 325 days measured1976: lowest 255.74 m (1976-02-01), highest 258.12 m (1976-10-20), average 256.53 m, 291 days measured1977: lowest 257.86 m (1977-03-21), highest 258.32 m (1977-06-07), average 258.09 m, 322 days measured1978: lowest 257.88 m (1978-03-22), highest 258.40 m (1978-05-30), average 258.15 m, 199 days measured1979: lowest 257.61 m (1979-05-02), highest 258.23 m (1979-06-26), average 257.91 m, 349 days measured1980: lowest 257.81 m (1980-04-23), highest 258.26 m (1980-08-26), average 258.05 m, 366 days measured1981: lowest 257.01 m (1981-11-01), highest 257.95 m (1981-01-15), average 257.50 m, 304 days measured1982: lowest 256.96 m (1982-04-28), highest 258.21 m (1982-08-19), average 257.74 m, 236 days measured1983: lowest 256.98 m (1983-02-08), highest 258.28 m (1983-09-20), average 257.72 m, 343 days measured1984: lowest 257.45 m (1984-12-31), highest 258.09 m (1984-06-26), average 257.86 m, 366 days measured1985: lowest 257.03 m (1985-04-23), highest 258.26 m (1985-07-11), average 257.61 m, 365 days measured1986: lowest 256.98 m (1986-02-20), highest 258.36 m (1986-07-08), average 257.66 m, 365 days measured1987: lowest 257.03 m (1987-04-17), highest 257.77 m (1987-10-01), average 257.48 m, 354 days measured1988: lowest 256.94 m (1988-03-31), highest 258.07 m (1988-08-16), average 257.43 m, 252 days measured1989: lowest 256.93 m (1989-05-03), highest 258.07 m (1989-07-17), average 257.55 m, 340 days measured1990: lowest 256.91 m (1990-04-20), highest 257.52 m (1990-07-29), average 257.22 m, 365 days measured1991: lowest 256.89 m (1991-03-02), highest 258.20 m (1991-08-01), average 257.47 m, 365 days measured1992: lowest 256.91 m (1992-04-26), highest 257.98 m (1992-07-08), average 257.48 m, 366 days measured1993: lowest 257.00 m (1993-03-02), highest 258.04 m (1993-10-01), average 257.50 m, 365 days measured1994: lowest 257.00 m (1994-04-26), highest 258.05 m (1994-07-15), average 257.46 m, 365 days measured1995: lowest 256.98 m (1995-05-04), highest 257.99 m (1995-10-13), average 257.37 m, 365 days measured1996: lowest 256.88 m (1996-04-28), highest 258.25 m (1996-08-11), average 257.68 m, 366 days measured1997: lowest 256.96 m (1997-04-26), highest 258.31 m (1997-09-14), average 257.76 m, 365 days measured1998: lowest 257.28 m (1998-12-31), highest 258.25 m (1998-07-22), average 257.91 m, 365 days measured1999: lowest 256.93 m (1999-04-06), highest 258.05 m (1999-09-09), average 257.54 m, 365 days measured2000: lowest 256.98 m (2000-04-16), highest 258.38 m (2000-07-28), average 257.76 m, 366 days measured2001: lowest 256.91 m (2001-04-22), highest 258.29 m (2001-07-10), average 257.70 m, 365 days measured2002: lowest 256.93 m (2002-05-03), highest 258.19 m (2002-10-16), average 257.54 m, 365 days measured2003: lowest 256.98 m (2003-04-02), highest 257.72 m (2003-10-15), average 257.39 m, 365 days measured2004: lowest 256.94 m (2004-03-03), highest 258.27 m (2004-10-03), average 257.61 m, 366 days measured2005: lowest 256.97 m (2005-04-11), highest 258.37 m (2005-07-28), average 257.83 m, 365 days measured2006: lowest 257.24 m (2006-04-20), highest 258.26 m (2006-08-13), average 257.84 m, 365 days measured2007: lowest 257.40 m (2007-04-25), highest 258.27 m (2007-08-02), average 257.92 m, 365 days measured2008: lowest 257.11 m (2008-05-12), highest 258.27 m (2008-08-10), average 257.72 m, 366 days measured2009: lowest 257.03 m (2009-05-02), highest 258.34 m (2009-06-25), average 257.81 m, 365 days measured2010: lowest 257.80 m (2010-12-31), highest 258.34 m (2010-08-24), average 258.09 m, 365 days measured2011: lowest 257.06 m (2011-04-26), highest 258.30 m (2011-08-20), average 257.74 m, 364 days measured2012: lowest 257.48 m (2012-04-06), highest 258.23 m (2012-12-03), average 257.97 m, 366 days measured2013: lowest 257.85 m (2013-05-05), highest 258.32 m (2013-10-16), average 258.09 m, 365 days measured2014: lowest 257.57 m (2014-05-01), highest 258.33 m (2014-07-08), average 258.04 m, 365 days measured2015: lowest 257.18 m (2015-04-26), highest 258.15 m (2015-10-19), average 257.71 m, 365 days measured2016: lowest 256.96 m (2016-04-19), highest 258.28 m (2016-08-19), average 257.76 m, 366 days measured2017: lowest 257.93 m (2017-05-02), highest 258.55 m (2017-05-24), average 258.13 m, 365 days measured2018: lowest 257.61 m (2018-04-28), highest 258.26 m (2018-09-27), average 258.08 m, 365 days measured2019: lowest 257.58 m (2019-04-28), highest 258.30 m (2019-08-27), average 257.99 m, 365 days measured2020: lowest 257.59 m (2020-05-13), highest 258.30 m (2020-07-16), average 258.01 m, 366 days measured2021: lowest 257.44 m (2021-05-10), highest 258.29 m (2021-07-05), average 257.97 m, 365 days measured2022: lowest 257.60 m (2022-05-07), highest 258.22 m (2022-01-02), average 258.04 m, 365 days measured2023: lowest 257.41 m (2023-04-28), highest 258.09 m (2023-10-21), average 257.85 m, 365 days measured2024: lowest 257.22 m (2024-04-08), highest 258.16 m (2024-09-30), average 257.75 m, 366 days measured2025: lowest 257.17 m (2025-05-02), highest 257.98 m (2025-10-30), average 257.64 m, 365 days measured2026: lowest 258.09 m (2026-09-22), highest 258.22 m (2026-10-20), average 258.17 m, 30 days measured
254255256258259195619741992201020261956: lowest 254.35 m (1956-10-11), highest 254.70 m (1956-08-29), average 254.55 m, 52 days measured1957: lowest 254.31 m (1957-04-13), highest 255.44 m (1957-08-23), average 255.09 m, 172 days measured1958: lowest 254.60 m (1958-03-25), highest 255.29 m (1958-10-24), average 255.03 m, 218 days measured1959: lowest 254.75 m (1959-03-17), highest 256.01 m (1959-09-09), average 255.61 m, 171 days measured1960: lowest 254.66 m (1960-04-09), highest 255.75 m (1960-09-21), average 255.24 m, 71 days measured1961: lowest 254.65 m (1961-05-02), highest 255.70 m (1961-07-19), average 255.29 m, 54 days measured1962: lowest 254.71 m (1962-03-23), highest 256.08 m (1962-06-29), average 255.65 m, 99 days measured1963: lowest 254.83 m (1963-01-23), highest 255.53 m (1963-06-11), average 255.34 m, 21 days measured1964: lowest 254.80 m (1964-03-18), highest 255.46 m (1964-09-22), average 255.20 m, 86 days measured1965: lowest 254.92 m (1965-03-23), highest 255.53 m (1965-06-15), average 255.22 m, 47 days measured1966: lowest 254.84 m (1966-04-30), highest 255.66 m (1966-07-10), average 255.38 m, 83 days measured1967: lowest 254.62 m (1967-02-20), highest 255.46 m (1967-07-11), average 255.10 m, 91 days measured1968: lowest 254.71 m (1968-01-02), highest 255.31 m (1968-06-24), average 255.03 m, 225 days measured1969: lowest 254.76 m (1969-04-01), highest 255.30 m (1969-11-27), average 254.93 m, 71 days measured1970: lowest 254.73 m (1970-04-15), highest 255.38 m (1970-10-02), average 255.18 m, 215 days measured1971: lowest 254.59 m (1971-04-09), highest 255.88 m (1971-10-27), average 255.07 m, 152 days measured1972: lowest 255.07 m (1972-03-27), highest 255.64 m (1972-06-30), average 255.30 m, 194 days measured1973: lowest 254.91 m (1973-04-15), highest 255.53 m (1973-11-02), average 255.23 m, 365 days measured1974: lowest 255.36 m (1974-04-05), highest 256.61 m (1974-08-26), average 256.01 m, 365 days measured1975: lowest 255.63 m (1975-04-25), highest 256.80 m (1975-07-08), average 256.18 m, 325 days measured1976: lowest 255.74 m (1976-02-01), highest 258.12 m (1976-10-20), average 256.53 m, 291 days measured1977: lowest 257.86 m (1977-03-21), highest 258.32 m (1977-06-07), average 258.09 m, 322 days measured1978: lowest 257.88 m (1978-03-22), highest 258.40 m (1978-05-30), average 258.15 m, 199 days measured1979: lowest 257.61 m (1979-05-02), highest 258.23 m (1979-06-26), average 257.91 m, 349 days measured1980: lowest 257.81 m (1980-04-23), highest 258.26 m (1980-08-26), average 258.05 m, 366 days measured1981: lowest 257.01 m (1981-11-01), highest 257.95 m (1981-01-15), average 257.50 m, 304 days measured1982: lowest 256.96 m (1982-04-28), highest 258.21 m (1982-08-19), average 257.74 m, 236 days measured1983: lowest 256.98 m (1983-02-08), highest 258.28 m (1983-09-20), average 257.72 m, 343 days measured1984: lowest 257.45 m (1984-12-31), highest 258.09 m (1984-06-26), average 257.86 m, 366 days measured1985: lowest 257.03 m (1985-04-23), highest 258.26 m (1985-07-11), average 257.61 m, 365 days measured1986: lowest 256.98 m (1986-02-20), highest 258.36 m (1986-07-08), average 257.66 m, 365 days measured1987: lowest 257.03 m (1987-04-17), highest 257.77 m (1987-10-01), average 257.48 m, 354 days measured1988: lowest 256.94 m (1988-03-31), highest 258.07 m (1988-08-16), average 257.43 m, 252 days measured1989: lowest 256.93 m (1989-05-03), highest 258.07 m (1989-07-17), average 257.55 m, 340 days measured1990: lowest 256.91 m (1990-04-20), highest 257.52 m (1990-07-29), average 257.22 m, 365 days measured1991: lowest 256.89 m (1991-03-02), highest 258.20 m (1991-08-01), average 257.47 m, 365 days measured1992: lowest 256.91 m (1992-04-26), highest 257.98 m (1992-07-08), average 257.48 m, 366 days measured1993: lowest 257.00 m (1993-03-02), highest 258.04 m (1993-10-01), average 257.50 m, 365 days measured1994: lowest 257.00 m (1994-04-26), highest 258.05 m (1994-07-15), average 257.46 m, 365 days measured1995: lowest 256.98 m (1995-05-04), highest 257.99 m (1995-10-13), average 257.37 m, 365 days measured1996: lowest 256.88 m (1996-04-28), highest 258.25 m (1996-08-11), average 257.68 m, 366 days measured1997: lowest 256.96 m (1997-04-26), highest 258.31 m (1997-09-14), average 257.76 m, 365 days measured1998: lowest 257.28 m (1998-12-31), highest 258.25 m (1998-07-22), average 257.91 m, 365 days measured1999: lowest 256.93 m (1999-04-06), highest 258.05 m (1999-09-09), average 257.54 m, 365 days measured2000: lowest 256.98 m (2000-04-16), highest 258.38 m (2000-07-28), average 257.76 m, 366 days measured2001: lowest 256.91 m (2001-04-22), highest 258.29 m (2001-07-10), average 257.70 m, 365 days measured2002: lowest 256.93 m (2002-05-03), highest 258.19 m (2002-10-16), average 257.54 m, 365 days measured2003: lowest 256.98 m (2003-04-02), highest 257.72 m (2003-10-15), average 257.39 m, 365 days measured2004: lowest 256.94 m (2004-03-03), highest 258.27 m (2004-10-03), average 257.61 m, 366 days measured2005: lowest 256.97 m (2005-04-11), highest 258.37 m (2005-07-28), average 257.83 m, 365 days measured2006: lowest 257.24 m (2006-04-20), highest 258.26 m (2006-08-13), average 257.84 m, 365 days measured2007: lowest 257.40 m (2007-04-25), highest 258.27 m (2007-08-02), average 257.92 m, 365 days measured2008: lowest 257.11 m (2008-05-12), highest 258.27 m (2008-08-10), average 257.72 m, 366 days measured2009: lowest 257.03 m (2009-05-02), highest 258.34 m (2009-06-25), average 257.81 m, 365 days measured2010: lowest 257.80 m (2010-12-31), highest 258.34 m (2010-08-24), average 258.09 m, 365 days measured2011: lowest 257.06 m (2011-04-26), highest 258.30 m (2011-08-20), average 257.74 m, 364 days measured2012: lowest 257.48 m (2012-04-06), highest 258.23 m (2012-12-03), average 257.97 m, 366 days measured2013: lowest 257.85 m (2013-05-05), highest 258.32 m (2013-10-16), average 258.09 m, 365 days measured2014: lowest 257.57 m (2014-05-01), highest 258.33 m (2014-07-08), average 258.04 m, 365 days measured2015: lowest 257.18 m (2015-04-26), highest 258.15 m (2015-10-19), average 257.71 m, 365 days measured2016: lowest 256.96 m (2016-04-19), highest 258.28 m (2016-08-19), average 257.76 m, 366 days measured2017: lowest 257.93 m (2017-05-02), highest 258.55 m (2017-05-24), average 258.13 m, 365 days measured2018: lowest 257.61 m (2018-04-28), highest 258.26 m (2018-09-27), average 258.08 m, 365 days measured2019: lowest 257.58 m (2019-04-28), highest 258.30 m (2019-08-27), average 257.99 m, 365 days measured2020: lowest 257.59 m (2020-05-13), highest 258.30 m (2020-07-16), average 258.01 m, 366 days measured2021: lowest 257.44 m (2021-05-10), highest 258.29 m (2021-07-05), average 257.97 m, 365 days measured2022: lowest 257.60 m (2022-05-07), highest 258.22 m (2022-01-02), average 258.04 m, 365 days measured2023: lowest 257.41 m (2023-04-28), highest 258.09 m (2023-10-21), average 257.85 m, 365 days measured2024: lowest 257.22 m (2024-04-08), highest 258.16 m (2024-09-30), average 257.75 m, 366 days measured2025: lowest 257.17 m (2025-05-02), highest 257.98 m (2025-10-30), average 257.64 m, 365 days measured2026: lowest 258.09 m (2026-09-22), highest 258.22 m (2026-10-20), average 258.17 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.

Lowest years

Years ranked by their lowest daily level.

  • 1973254.910 m on Apr 15
  • 1974255.361 m on Apr 5
  • 1996256.875 m on Apr 28
  • 1991256.894 m on Mar 2
  • 2001256.906 m on Apr 22

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (30 days)258.169258.095Sep 22258.221Oct 20
2025257.640257.168May 2257.977Oct 30
2024257.750257.219Apr 8258.160Sep 30
2023257.847257.415Apr 28258.088Oct 21
2022258.038257.600May 7258.219Jan 2
2021257.967257.440May 10258.286Jul 5
2020258.006257.591May 13258.299Jul 16
2019257.988257.577Apr 28258.300Aug 27
2018258.079257.609Apr 28258.256Sep 27
2017258.134257.929May 2258.551May 24
2016257.763256.956Apr 19258.277Aug 19
2015257.713257.185Apr 26258.150Oct 19
2014258.038257.568May 1258.329Jul 8
2013258.094257.846May 5258.320Oct 16
2012257.971257.483Apr 6258.229Dec 3
2011257.738257.058Apr 26258.296Aug 20
2010258.089257.799Dec 31258.343Aug 24
2009257.806257.031May 2258.339Jun 25
2008257.715257.112May 12258.274Aug 10
2007257.923257.399Apr 25258.273Aug 2
2006257.839257.236Apr 20258.256Aug 13
2005257.831256.974Apr 11258.369Jul 28
2004257.612256.937Mar 3258.266Oct 3
2003257.388256.982Apr 2257.715Oct 15
2002257.543256.930May 3258.192Oct 16
2001257.700256.906Apr 22258.290Jul 10
2000257.762256.980Apr 16258.382Jul 28
1999257.536256.932Apr 6258.047Sep 9
1998257.909257.279Dec 31258.252Jul 22
1997257.764256.960Apr 26258.314Sep 14
1996257.678256.875Apr 28258.246Aug 11
1995257.375256.980May 4257.993Oct 13
1994257.464256.995Apr 26258.049Jul 15
1993257.497257.003Mar 2258.039Oct 1
1992257.476256.913Apr 26257.980Jul 8
1991257.472256.894Mar 2258.196Aug 1
1990257.221256.906Apr 20257.524Jul 29
1989257.549256.934May 3258.067Jul 17
1988 (252 days)257.434256.941Mar 31258.065Aug 16
1987257.481257.032Apr 17257.774Oct 1
1986257.655256.977Feb 20258.362Jul 8
1985257.609257.027Apr 23258.259Jul 11
1984257.858257.452Dec 31258.087Jun 26
1983257.720256.978Feb 8258.278Sep 20
1982 (236 days)257.745256.961Apr 28258.211Aug 19
1981 (304 days)257.504257.006Nov 1257.946Jan 15
1980258.049257.807Apr 23258.264Aug 26
1979257.910257.611May 2258.234Jun 26
1978 (199 days)258.150257.882Mar 22258.403May 30
1977 (322 days)258.092257.855Mar 21258.321Jun 7
1976 (291 days)256.533255.739Feb 1258.123Oct 20
1975 (325 days)256.178255.630Apr 25256.803Jul 8
1974256.007255.361Apr 5256.611Aug 26
1973255.232254.910Apr 15255.535Nov 2
1972 (194 days)255.302255.069Mar 27255.642Jun 30
1971 (152 days)255.067254.593Apr 9255.880Oct 27
1970 (215 days)255.180254.731Apr 15255.380Oct 2
1969 (71 days)254.935254.764Apr 1255.297Nov 27
1968 (225 days)255.030254.709Jan 2255.313Jun 24
1967 (91 days)255.097254.615Feb 20255.456Jul 11
1966 (83 days)255.377254.837Apr 30255.657Jul 10
1965 (47 days)255.225254.923Mar 23255.526Jun 15
1964 (86 days)255.201254.801Mar 18255.456Sep 22
1963 (21 days)255.340254.828Jan 23255.529Jun 11
1962 (99 days)255.652254.706Mar 23256.081Jun 29
1961 (54 days)255.286254.648May 2255.703Jul 19
1960 (71 days)255.236254.657Apr 9255.745Sep 21
1959 (171 days)255.606254.746Mar 17256.011Sep 9
1958 (218 days)255.031254.596Mar 25255.291Oct 24
1957 (172 days)255.091254.310Apr 13255.441Aug 23
1956 (52 days)254.546254.346Oct 11254.700Aug 29

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

Monthly averages

MonthAverageLowestHighest
January257.441254.319258.222
February257.246254.615258.175
March257.132254.596258.132
April257.031254.310258.147
May257.123254.310258.551
June257.385254.767258.471
July257.499255.066258.382
August257.520254.682258.360
September257.531254.438258.314
October257.511254.346258.320
November257.611254.822258.276
December257.597254.767258.253

Download

Daily levels as CSV (20,707 rows; credit the original agencies listed below)