Country: Canada
United StatesCanadaUnited Kingdom

Lake Athabasca water level history

Daily records since 1956 · Level today: 209.162 m

Highest on record
210.893 m
Aug 13, 2020
Lowest on record
207.770 m
Feb 1, 1970
Today
209.162 m
Oct 23, 2026
Years of data
71
since 1956

In short

Across 58 complete years, 1970 had the lowest average level (208.136 m) and 2020 the highest (209.817 m).

On average the lake is lowest in April (208.354 m) and highest in July (209.316 m).

Lake Athabasca level, all years

Loading chart…

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

Each year's lowest and highest level

207.6208.5209.3210.2211.11956196519741983199220012010201920261956: lowest 207.92 m (1956-03-04), highest 209.41 m (1956-07-18), average 208.53 m, 295 days measured1957: lowest 207.86 m (1957-03-01), highest 209.37 m (1957-08-27), average 208.95 m, 216 days measured1958: lowest 208.00 m (1958-04-01), highest 209.95 m (1958-06-20), average 208.82 m, 286 days measured1959: lowest 207.90 m (1959-02-15), highest 209.62 m (1959-07-15), average 208.66 m, 321 days measured1960: lowest 208.15 m (1960-02-12), highest 210.44 m (1960-07-18), average 209.12 m, 366 days measured1961: lowest 208.20 m (1961-12-31), highest 209.84 m (1961-07-10), average 208.84 m, 365 days measured1962: lowest 208.12 m (1962-01-27), highest 210.57 m (1962-07-29), average 209.18 m, 365 days measured1963: lowest 208.15 m (1963-04-20), highest 210.19 m (1963-07-01), average 209.06 m, 365 days measured1964: lowest 208.14 m (1964-03-09), highest 210.47 m (1964-08-21), average 209.19 m, 366 days measured1965: lowest 208.33 m (1965-03-21), highest 210.64 m (1965-07-20), average 209.29 m, 365 days measured1966: lowest 208.09 m (1966-04-10), highest 209.99 m (1966-08-02), average 209.02 m, 365 days measured1967: lowest 208.09 m (1967-04-21), highest 210.49 m (1967-07-07), average 209.01 m, 365 days measured1968: lowest 207.99 m (1968-12-28), highest 208.74 m (1968-07-24), average 208.29 m, 366 days measured1969: lowest 207.78 m (1969-12-28), highest 209.14 m (1969-06-09), average 208.28 m, 365 days measured1970: lowest 207.77 m (1970-02-01), highest 208.76 m (1970-07-20), average 208.14 m, 347 days measured1971: lowest 207.81 m (1971-01-06), highest 209.29 m (1971-07-29), average 208.35 m, 302 days measured1972: lowest 207.88 m (1972-01-09), highest 209.83 m (1972-07-24), average 209.03 m, 250 days measured1973: lowest 208.23 m (1973-03-14), highest 209.55 m (1973-07-15), average 208.88 m, 259 days measured1974: lowest 207.90 m (1974-04-02), highest 210.16 m (1974-06-17), average 209.16 m, 308 days measured1975: lowest 208.31 m (1975-04-19), highest 209.28 m (1975-08-06), average 208.85 m, 352 days measured1976: lowest 208.55 m (1976-03-12), highest 209.64 m (1976-08-31), average 209.18 m, 289 days measured1977: lowest 208.65 m (1977-04-15), highest 209.82 m (1977-08-01), average 209.25 m, 365 days measured1978: lowest 208.66 m (1978-04-11), highest 209.44 m (1978-07-03), average 209.09 m, 330 days measured1979: lowest 208.55 m (1979-04-28), highest 209.90 m (1979-07-27), average 209.12 m, 365 days measured1980: lowest 208.28 m (1980-12-29), highest 208.78 m (1980-07-16), average 208.57 m, 231 days measured1981: lowest 207.98 m (1981-12-23), highest 208.81 m (1981-07-09), average 208.34 m, 365 days measured1982: lowest 207.97 m (1982-02-27), highest 209.07 m (1982-08-14), average 208.50 m, 281 days measured1983: lowest 208.06 m (1983-04-03), highest 209.28 m (1983-08-11), average 208.54 m, 365 days measured1984: lowest 208.12 m (1984-04-15), highest 209.22 m (1984-07-28), average 208.65 m, 366 days measured1985: lowest 208.36 m (1985-04-07), highest 209.39 m (1985-06-17), average 208.82 m, 365 days measured1986: lowest 208.37 m (1986-04-11), highest 209.63 m (1986-08-14), average 208.91 m, 365 days measured1987: lowest 208.38 m (1987-12-31), highest 209.22 m (1987-07-01), average 208.74 m, 365 days measured1988: lowest 208.23 m (1988-04-10), highest 209.38 m (1988-08-04), average 208.69 m, 366 days measured1989: lowest 208.31 m (1989-04-20), highest 209.55 m (1989-09-03), average 208.94 m, 365 days measured1990: lowest 208.52 m (1990-04-10), highest 209.73 m (1990-07-14), average 208.96 m, 365 days measured1991: lowest 208.36 m (1991-04-17), highest 209.63 m (1991-07-28), average 208.92 m, 365 days measured1992: lowest 208.62 m (1992-03-25), highest 209.35 m (1992-07-05), average 208.91 m, 366 days measured1993: lowest 208.55 m (1993-12-05), highest 208.90 m (1993-08-20), average 208.75 m, 306 days measured1994: lowest 208.39 m (1994-12-28), highest 209.47 m (1994-07-18), average 208.84 m, 365 days measured1995: lowest 208.19 m (1995-04-14), highest 208.98 m (1995-09-12), average 208.51 m, 365 days measured1996: lowest 208.22 m (1996-04-16), highest 210.39 m (1996-08-21), average 209.24 m, 366 days measured1997: lowest 208.79 m (1997-04-21), highest 210.49 m (1997-07-25), average 209.80 m, 365 days measured1998: lowest 208.29 m (1998-12-31), highest 210.30 m (1998-01-22), average 209.37 m, 365 days measured1999: lowest 207.95 m (1999-12-31), highest 208.69 m (1999-08-26), average 208.33 m, 365 days measured2000: lowest 207.88 m (2000-04-19), highest 208.68 m (2000-08-27), average 208.23 m, 366 days measured2001: lowest 208.15 m (2001-12-31), highest 209.01 m (2001-08-20), average 208.51 m, 365 days measured2002: lowest 208.05 m (2002-04-29), highest 208.74 m (2002-08-18), average 208.40 m, 365 days measured2003: lowest 208.32 m (2003-04-12), highest 209.35 m (2003-07-28), average 208.79 m, 365 days measured2004: lowest 208.39 m (2004-04-09), highest 209.03 m (2004-07-31), average 208.66 m, 366 days measured2005: lowest 208.37 m (2005-03-17), highest 209.54 m (2005-08-10), average 209.00 m, 365 days measured2006: lowest 208.10 m (2006-12-11), highest 209.13 m (2006-01-12), average 208.68 m, 365 days measured2007: lowest 208.06 m (2007-03-07), highest 209.39 m (2007-06-18), average 208.64 m, 365 days measured2008: lowest 208.36 m (2008-12-31), highest 209.16 m (2008-06-29), average 208.65 m, 366 days measured2009: lowest 208.17 m (2009-04-09), highest 209.10 m (2009-08-06), average 208.60 m, 365 days measured2010: lowest 208.02 m (2010-12-31), highest 208.52 m (2010-01-02), average 208.33 m, 365 days measured2011: lowest 207.90 m (2011-03-29), highest 209.34 m (2011-08-02), average 208.44 m, 365 days measured2012: lowest 208.12 m (2012-03-29), highest 209.28 m (2012-08-11), average 208.61 m, 366 days measured2013: lowest 208.31 m (2013-04-24), highest 209.91 m (2013-07-12), average 208.91 m, 365 days measured2014: lowest 208.22 m (2014-04-18), highest 209.45 m (2014-07-11), average 208.70 m, 365 days measured2015: lowest 207.90 m (2015-12-27), highest 208.58 m (2015-06-18), average 208.24 m, 365 days measured2016: lowest 207.89 m (2016-04-08), highest 208.73 m (2016-09-28), average 208.34 m, 366 days measured2017: lowest 208.49 m (2017-12-05), highest 209.39 m (2017-07-04), average 208.85 m, 365 days measured2018: lowest 208.34 m (2018-04-21), highest 209.37 m (2018-08-14), average 208.79 m, 365 days measured2019: lowest 208.22 m (2019-04-06), highest 209.10 m (2019-09-30), average 208.65 m, 365 days measured2020: lowest 208.75 m (2020-04-25), highest 210.89 m (2020-08-13), average 209.82 m, 366 days measured2021: lowest 208.96 m (2021-12-31), highest 210.18 m (2021-07-11), average 209.64 m, 365 days measured2022: lowest 208.53 m (2022-12-31), highest 210.03 m (2022-07-14), average 209.15 m, 365 days measured2023: lowest 207.96 m (2023-12-30), highest 208.79 m (2023-07-12), average 208.41 m, 365 days measured2024: lowest 207.92 m (2024-03-26), highest 208.64 m (2024-08-12), average 208.21 m, 366 days measured2025: lowest 208.01 m (2025-12-31), highest 208.72 m (2025-07-09), average 208.30 m, 365 days measured2026: lowest 209.20 m (2026-10-19), highest 209.45 m (2026-09-27), average 209.31 m, 30 days measured
207.6208.5209.3210.2211.1195619741992201020261956: lowest 207.92 m (1956-03-04), highest 209.41 m (1956-07-18), average 208.53 m, 295 days measured1957: lowest 207.86 m (1957-03-01), highest 209.37 m (1957-08-27), average 208.95 m, 216 days measured1958: lowest 208.00 m (1958-04-01), highest 209.95 m (1958-06-20), average 208.82 m, 286 days measured1959: lowest 207.90 m (1959-02-15), highest 209.62 m (1959-07-15), average 208.66 m, 321 days measured1960: lowest 208.15 m (1960-02-12), highest 210.44 m (1960-07-18), average 209.12 m, 366 days measured1961: lowest 208.20 m (1961-12-31), highest 209.84 m (1961-07-10), average 208.84 m, 365 days measured1962: lowest 208.12 m (1962-01-27), highest 210.57 m (1962-07-29), average 209.18 m, 365 days measured1963: lowest 208.15 m (1963-04-20), highest 210.19 m (1963-07-01), average 209.06 m, 365 days measured1964: lowest 208.14 m (1964-03-09), highest 210.47 m (1964-08-21), average 209.19 m, 366 days measured1965: lowest 208.33 m (1965-03-21), highest 210.64 m (1965-07-20), average 209.29 m, 365 days measured1966: lowest 208.09 m (1966-04-10), highest 209.99 m (1966-08-02), average 209.02 m, 365 days measured1967: lowest 208.09 m (1967-04-21), highest 210.49 m (1967-07-07), average 209.01 m, 365 days measured1968: lowest 207.99 m (1968-12-28), highest 208.74 m (1968-07-24), average 208.29 m, 366 days measured1969: lowest 207.78 m (1969-12-28), highest 209.14 m (1969-06-09), average 208.28 m, 365 days measured1970: lowest 207.77 m (1970-02-01), highest 208.76 m (1970-07-20), average 208.14 m, 347 days measured1971: lowest 207.81 m (1971-01-06), highest 209.29 m (1971-07-29), average 208.35 m, 302 days measured1972: lowest 207.88 m (1972-01-09), highest 209.83 m (1972-07-24), average 209.03 m, 250 days measured1973: lowest 208.23 m (1973-03-14), highest 209.55 m (1973-07-15), average 208.88 m, 259 days measured1974: lowest 207.90 m (1974-04-02), highest 210.16 m (1974-06-17), average 209.16 m, 308 days measured1975: lowest 208.31 m (1975-04-19), highest 209.28 m (1975-08-06), average 208.85 m, 352 days measured1976: lowest 208.55 m (1976-03-12), highest 209.64 m (1976-08-31), average 209.18 m, 289 days measured1977: lowest 208.65 m (1977-04-15), highest 209.82 m (1977-08-01), average 209.25 m, 365 days measured1978: lowest 208.66 m (1978-04-11), highest 209.44 m (1978-07-03), average 209.09 m, 330 days measured1979: lowest 208.55 m (1979-04-28), highest 209.90 m (1979-07-27), average 209.12 m, 365 days measured1980: lowest 208.28 m (1980-12-29), highest 208.78 m (1980-07-16), average 208.57 m, 231 days measured1981: lowest 207.98 m (1981-12-23), highest 208.81 m (1981-07-09), average 208.34 m, 365 days measured1982: lowest 207.97 m (1982-02-27), highest 209.07 m (1982-08-14), average 208.50 m, 281 days measured1983: lowest 208.06 m (1983-04-03), highest 209.28 m (1983-08-11), average 208.54 m, 365 days measured1984: lowest 208.12 m (1984-04-15), highest 209.22 m (1984-07-28), average 208.65 m, 366 days measured1985: lowest 208.36 m (1985-04-07), highest 209.39 m (1985-06-17), average 208.82 m, 365 days measured1986: lowest 208.37 m (1986-04-11), highest 209.63 m (1986-08-14), average 208.91 m, 365 days measured1987: lowest 208.38 m (1987-12-31), highest 209.22 m (1987-07-01), average 208.74 m, 365 days measured1988: lowest 208.23 m (1988-04-10), highest 209.38 m (1988-08-04), average 208.69 m, 366 days measured1989: lowest 208.31 m (1989-04-20), highest 209.55 m (1989-09-03), average 208.94 m, 365 days measured1990: lowest 208.52 m (1990-04-10), highest 209.73 m (1990-07-14), average 208.96 m, 365 days measured1991: lowest 208.36 m (1991-04-17), highest 209.63 m (1991-07-28), average 208.92 m, 365 days measured1992: lowest 208.62 m (1992-03-25), highest 209.35 m (1992-07-05), average 208.91 m, 366 days measured1993: lowest 208.55 m (1993-12-05), highest 208.90 m (1993-08-20), average 208.75 m, 306 days measured1994: lowest 208.39 m (1994-12-28), highest 209.47 m (1994-07-18), average 208.84 m, 365 days measured1995: lowest 208.19 m (1995-04-14), highest 208.98 m (1995-09-12), average 208.51 m, 365 days measured1996: lowest 208.22 m (1996-04-16), highest 210.39 m (1996-08-21), average 209.24 m, 366 days measured1997: lowest 208.79 m (1997-04-21), highest 210.49 m (1997-07-25), average 209.80 m, 365 days measured1998: lowest 208.29 m (1998-12-31), highest 210.30 m (1998-01-22), average 209.37 m, 365 days measured1999: lowest 207.95 m (1999-12-31), highest 208.69 m (1999-08-26), average 208.33 m, 365 days measured2000: lowest 207.88 m (2000-04-19), highest 208.68 m (2000-08-27), average 208.23 m, 366 days measured2001: lowest 208.15 m (2001-12-31), highest 209.01 m (2001-08-20), average 208.51 m, 365 days measured2002: lowest 208.05 m (2002-04-29), highest 208.74 m (2002-08-18), average 208.40 m, 365 days measured2003: lowest 208.32 m (2003-04-12), highest 209.35 m (2003-07-28), average 208.79 m, 365 days measured2004: lowest 208.39 m (2004-04-09), highest 209.03 m (2004-07-31), average 208.66 m, 366 days measured2005: lowest 208.37 m (2005-03-17), highest 209.54 m (2005-08-10), average 209.00 m, 365 days measured2006: lowest 208.10 m (2006-12-11), highest 209.13 m (2006-01-12), average 208.68 m, 365 days measured2007: lowest 208.06 m (2007-03-07), highest 209.39 m (2007-06-18), average 208.64 m, 365 days measured2008: lowest 208.36 m (2008-12-31), highest 209.16 m (2008-06-29), average 208.65 m, 366 days measured2009: lowest 208.17 m (2009-04-09), highest 209.10 m (2009-08-06), average 208.60 m, 365 days measured2010: lowest 208.02 m (2010-12-31), highest 208.52 m (2010-01-02), average 208.33 m, 365 days measured2011: lowest 207.90 m (2011-03-29), highest 209.34 m (2011-08-02), average 208.44 m, 365 days measured2012: lowest 208.12 m (2012-03-29), highest 209.28 m (2012-08-11), average 208.61 m, 366 days measured2013: lowest 208.31 m (2013-04-24), highest 209.91 m (2013-07-12), average 208.91 m, 365 days measured2014: lowest 208.22 m (2014-04-18), highest 209.45 m (2014-07-11), average 208.70 m, 365 days measured2015: lowest 207.90 m (2015-12-27), highest 208.58 m (2015-06-18), average 208.24 m, 365 days measured2016: lowest 207.89 m (2016-04-08), highest 208.73 m (2016-09-28), average 208.34 m, 366 days measured2017: lowest 208.49 m (2017-12-05), highest 209.39 m (2017-07-04), average 208.85 m, 365 days measured2018: lowest 208.34 m (2018-04-21), highest 209.37 m (2018-08-14), average 208.79 m, 365 days measured2019: lowest 208.22 m (2019-04-06), highest 209.10 m (2019-09-30), average 208.65 m, 365 days measured2020: lowest 208.75 m (2020-04-25), highest 210.89 m (2020-08-13), average 209.82 m, 366 days measured2021: lowest 208.96 m (2021-12-31), highest 210.18 m (2021-07-11), average 209.64 m, 365 days measured2022: lowest 208.53 m (2022-12-31), highest 210.03 m (2022-07-14), average 209.15 m, 365 days measured2023: lowest 207.96 m (2023-12-30), highest 208.79 m (2023-07-12), average 208.41 m, 365 days measured2024: lowest 207.92 m (2024-03-26), highest 208.64 m (2024-08-12), average 208.21 m, 366 days measured2025: lowest 208.01 m (2025-12-31), highest 208.72 m (2025-07-09), average 208.30 m, 365 days measured2026: lowest 209.20 m (2026-10-19), highest 209.45 m (2026-09-27), average 209.31 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.

  • 1970207.770 m on Feb 1
  • 1969207.779 m on Dec 28
  • 2000207.881 m on Apr 19
  • 2016207.887 m on Apr 8
  • 2011207.897 m on Mar 29

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (30 days)209.315209.201Oct 19209.445Sep 27
2025208.303208.010Dec 31208.724Jul 9
2024208.206207.917Mar 26208.642Aug 12
2023208.414207.958Dec 30208.787Jul 12
2022209.148208.532Dec 31210.031Jul 14
2021209.639208.964Dec 31210.181Jul 11
2020209.817208.748Apr 25210.893Aug 13
2019208.654208.216Apr 6209.096Sep 30
2018208.787208.337Apr 21209.368Aug 14
2017208.852208.495Dec 5209.386Jul 4
2016208.336207.887Apr 8208.735Sep 28
2015208.242207.905Dec 27208.577Jun 18
2014208.698208.222Apr 18209.446Jul 11
2013208.912208.314Apr 24209.912Jul 12
2012208.612208.119Mar 29209.283Aug 11
2011208.439207.897Mar 29209.345Aug 2
2010208.330208.021Dec 31208.518Jan 2
2009208.602208.169Apr 9209.103Aug 6
2008208.655208.355Dec 31209.164Jun 29
2007208.645208.062Mar 7209.391Jun 18
2006208.685208.097Dec 11209.126Jan 12
2005208.997208.367Mar 17209.537Aug 10
2004208.665208.390Apr 9209.028Jul 31
2003208.786208.318Apr 12209.348Jul 28
2002208.397208.048Apr 29208.745Aug 18
2001208.510208.150Dec 31209.013Aug 20
2000208.233207.881Apr 19208.683Aug 27
1999208.325207.948Dec 31208.693Aug 26
1998209.369208.293Dec 31210.296Jan 22
1997209.801208.794Apr 21210.485Jul 25
1996209.235208.219Apr 16210.389Aug 21
1995208.505208.190Apr 14208.977Sep 12
1994208.838208.391Dec 28209.468Jul 18
1993 (306 days)208.749208.547Dec 5208.902Aug 20
1992208.912208.624Mar 25209.346Jul 5
1991208.924208.360Apr 17209.634Jul 28
1990208.963208.518Apr 10209.728Jul 14
1989208.935208.305Apr 20209.548Sep 3
1988208.693208.230Apr 10209.381Aug 4
1987208.741208.384Dec 31209.222Jul 1
1986208.909208.373Apr 11209.630Aug 14
1985208.816208.363Apr 7209.390Jun 17
1984208.655208.120Apr 15209.225Jul 28
1983208.537208.061Apr 3209.275Aug 11
1982 (281 days)208.499207.970Feb 27209.071Aug 14
1981208.341207.978Dec 23208.808Jul 9
1980 (231 days)208.573208.281Dec 29208.778Jul 16
1979209.119208.551Apr 28209.904Jul 27
1978209.087208.657Apr 11209.440Jul 3
1977209.252208.645Apr 15209.818Aug 1
1976 (289 days)209.176208.553Mar 12209.638Aug 31
1975208.854208.306Apr 19209.276Aug 6
1974 (308 days)209.160207.898Apr 2210.157Jun 17
1973 (259 days)208.875208.233Mar 14209.553Jul 15
1972 (250 days)209.027207.883Jan 9209.827Jul 24
1971 (302 days)208.354207.807Jan 6209.285Jul 29
1970208.136207.770Feb 1208.758Jul 20
1969208.285207.779Dec 28209.142Jun 9
1968208.288207.986Dec 28208.745Jul 24
1967209.008208.087Apr 21210.492Jul 7
1966209.020208.087Apr 10209.992Aug 2
1965209.285208.325Mar 21210.641Jul 20
1964209.189208.142Mar 9210.474Aug 21
1963209.058208.151Apr 20210.193Jul 1
1962209.175208.120Jan 27210.574Jul 29
1961208.836208.203Dec 31209.840Jul 10
1960209.118208.148Feb 12210.437Jul 18
1959 (321 days)208.656207.904Feb 15209.617Jul 15
1958 (286 days)208.818208.002Apr 1209.946Jun 20
1957 (216 days)208.953207.855Mar 1209.370Aug 27
1956 (295 days)208.534207.922Mar 4209.407Jul 18

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

Monthly averages

MonthAverageLowestHighest
January208.533207.773210.296
February208.443207.770210.267
March208.362207.843210.171
April208.354207.881209.903
May208.748207.943210.032
June209.093208.041210.397
July209.316208.310210.785
August209.276208.150210.893
September209.073208.060210.744
October208.861207.895210.518
November208.657207.788210.269
December208.580207.779210.224

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Daily levels as CSV (24,492 rows; credit the original agencies listed below)