Country: Canada
United StatesCanadaUnited Kingdom

Reindeer Lake water level history

Daily records since 1930 · Level today: 336.563 m

Highest on record
336.847 m
Sep 3, 1976
Lowest on record
333.911 m
Apr 20, 1931
Today
336.563 m
Oct 23, 2026
Years of data
96
since 1930

In short

Across 35 complete years, 1993 had the lowest average level (334.992 m) and 1997 the highest (336.531 m).

On average the lake is lowest in April (335.677 m) and highest in September (336.044 m).

Reindeer Lake level, all years

Loading chart…

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

Each year's lowest and highest level

333.7334.6335.4336.2337.01930194219541966197819902002201420261930: lowest 333.93 m (1930-10-18), highest 334.15 m (1930-07-05), average 334.02 m, 25 days measured1931: lowest 333.91 m (1931-04-20), highest 334.52 m (1931-10-09), average 334.22 m, 50 days measured1932: lowest 334.40 m (1932-03-22), highest 334.88 m (1932-08-03), average 334.63 m, 51 days measured1933: lowest 334.19 m (1933-05-20), highest 334.85 m (1933-07-15), average 334.54 m, 50 days measured1934: lowest 334.16 m (1934-04-27), highest 334.87 m (1934-08-04), average 334.59 m, 50 days measured1935: lowest 334.38 m (1935-12-23), highest 334.74 m (1935-06-22), average 334.55 m, 44 days measured1936: lowest 334.12 m (1936-05-23), highest 334.64 m (1936-08-15), average 334.39 m, 51 days measured1937: lowest 334.12 m (1937-04-10), highest 334.47 m (1937-09-11), average 334.26 m, 54 days measured1938: lowest 334.17 m (1938-04-09), highest 335.00 m (1938-09-19), average 334.60 m, 50 days measured1939: lowest 334.77 m (1939-04-17), highest 335.43 m (1939-08-14), average 335.12 m, 53 days measured1940: lowest 334.66 m (1940-11-16), highest 335.24 m (1940-01-13), average 335.07 m, 52 days measured1941: lowest 334.64 m (1941-04-15), highest 335.78 m (1941-12-27), average 335.25 m, 51 days measured1942: lowest 335.69 m (1942-04-18), highest 336.27 m (1942-08-22), average 335.95 m, 51 days measured1943: lowest 335.46 m (1943-04-24), highest 336.24 m (1943-09-25), average 335.89 m, 52 days measured1944: lowest 336.00 m (1944-04-22), highest 336.57 m (1944-10-14), average 336.25 m, 48 days measured1945: lowest 336.20 m (1945-06-02), highest 336.47 m (1945-01-06), average 336.35 m, 48 days measured1946: lowest 335.86 m (1946-09-25), highest 336.52 m (1946-07-27), average 336.21 m, 45 days measured1947: lowest 335.56 m (1947-09-30), highest 336.56 m (1947-12-14), average 335.90 m, 43 days measured1948: lowest 335.93 m (1948-08-25), highest 336.56 m (1948-01-03), average 336.17 m, 48 days measured1949: lowest 335.82 m (1949-04-20), highest 336.65 m (1949-08-05), average 336.22 m, 52 days measured1950: lowest 336.13 m (1950-05-03), highest 336.50 m (1950-01-08), average 336.32 m, 46 days measured1951: lowest 336.09 m (1951-04-29), highest 336.57 m (1951-07-04), average 336.32 m, 46 days measured1952: lowest 335.86 m (1952-04-13), highest 336.54 m (1952-12-21), average 336.15 m, 51 days measured1953: lowest 336.36 m (1953-04-26), highest 336.55 m (1953-01-04), average 336.46 m, 47 days measured1954: lowest 336.24 m (1954-05-09), highest 336.60 m (1954-07-26), average 336.40 m, 48 days measured1955: lowest 336.18 m (1955-04-24), highest 336.69 m (1955-08-21), average 336.44 m, 62 days measured1956: lowest 335.51 m (1956-11-06), highest 336.17 m (1956-01-01), average 335.77 m, 61 days measured1957: lowest 335.27 m (1957-04-21), highest 336.36 m (1957-10-25), average 335.82 m, 49 days measured1958: lowest 336.11 m (1958-04-20), highest 336.44 m (1958-10-25), average 336.33 m, 52 days measured1959: lowest 336.16 m (1959-05-03), highest 336.56 m (1959-07-18), average 336.31 m, 46 days measured1960: lowest 335.96 m (1960-05-01), highest 336.66 m (1960-07-15), average 336.20 m, 46 days measured1961: lowest 336.04 m (1961-04-23), highest 336.61 m (1961-08-25), average 336.27 m, 36 days measured1962: lowest 335.99 m (1962-05-13), highest 336.60 m (1962-08-03), average 336.32 m, 38 days measured1963: lowest 335.77 m (1963-04-28), highest 336.54 m (1963-10-23), average 336.16 m, 47 days measured1964: lowest 335.98 m (1964-04-28), highest 336.69 m (1964-10-21), average 336.35 m, 40 days measured1965: lowest 336.20 m (1965-05-05), highest 336.60 m (1965-01-12), average 336.44 m, 40 days measured1966: lowest 336.08 m (1966-04-27), highest 336.51 m (1966-08-03), average 336.32 m, 39 days measured1967: lowest 335.71 m (1967-05-14), highest 336.44 m (1967-08-08), average 336.15 m, 50 days measured1968: lowest 335.44 m (1968-05-12), highest 336.20 m (1968-01-07), average 335.65 m, 51 days measured1969: lowest 335.07 m (1969-05-04), highest 335.58 m (1969-01-05), average 335.34 m, 51 days measured1970: lowest 334.84 m (1970-06-29), highest 335.71 m (1970-12-18), average 335.31 m, 185 days measured1971: lowest 335.77 m (1971-01-29), highest 336.67 m (1971-10-29), average 336.30 m, 330 days measured1972: lowest 336.14 m (1972-09-20), highest 336.58 m (1972-09-03), average 336.47 m, 205 days measured1973: lowest 335.83 m (1973-05-10), highest 336.46 m (1973-12-24), average 336.21 m, 358 days measured1974: lowest 336.27 m (1974-04-26), highest 336.61 m (1974-12-28), average 336.45 m, 365 days measured1975: lowest 336.21 m (1975-05-23), highest 336.69 m (1975-08-30), average 336.45 m, 233 days measured1976: lowest 336.10 m (1976-04-06), highest 336.85 m (1976-09-03), average 336.60 m, 190 days measured1977: lowest 336.09 m (1977-04-16), highest 336.70 m (1977-07-18), average 336.44 m, 312 days measured1978: lowest 335.66 m (1978-04-29), highest 336.56 m (1978-09-05), average 336.23 m, 276 days measured1979: lowest 335.92 m (1979-05-17), highest 336.51 m (1979-09-22), average 336.28 m, 365 days measured1980: lowest 335.72 m (1980-09-15), highest 336.40 m (1980-01-01), average 335.90 m, 86 days measured1981: lowest 335.02 m (1981-11-15), highest 335.72 m (1981-01-05), average 335.42 m, 317 days measured1982: lowest 334.53 m (1982-03-22), highest 335.39 m (1982-09-11), average 335.16 m, 155 days measured1983: lowest 334.54 m (1983-04-26), highest 335.78 m (1983-11-03), average 335.15 m, 301 days measured1984: lowest 335.16 m (1984-12-31), highest 335.62 m (1984-01-09), average 335.36 m, 205 days measured1985: lowest 334.76 m (1985-04-20), highest 335.86 m (1985-10-29), average 335.31 m, 313 days measured1986: lowest 335.28 m (1986-04-07), highest 336.58 m (1986-10-09), average 336.32 m, 185 days measured1987: lowest 335.65 m (1987-12-31), highest 336.35 m (1987-01-07), average 336.04 m, 151 days measured1988: lowest 335.02 m (1988-04-29), highest 335.64 m (1988-01-02), average 335.25 m, 182 days measured1989: lowest 334.78 m (1989-04-15), highest 335.81 m (1989-09-14), average 335.39 m, 48 days measured1990: lowest 335.16 m (1990-04-02), highest 335.58 m (1990-08-01), average 335.46 m, 218 days measured1991: lowest 335.09 m (1991-04-18), highest 335.86 m (1991-10-06), average 335.41 m, 280 days measured1992: lowest 335.06 m (1992-04-18), highest 335.73 m (1992-10-01), average 335.41 m, 366 days measured1993: lowest 334.70 m (1993-06-25), highest 335.40 m (1993-01-01), average 334.99 m, 365 days measured1994: lowest 334.84 m (1994-04-28), highest 335.99 m (1994-08-24), average 335.40 m, 365 days measured1995: lowest 335.07 m (1995-08-09), highest 335.79 m (1995-12-31), average 335.36 m, 365 days measured1996: lowest 335.56 m (1996-05-03), highest 336.52 m (1996-12-31), average 336.01 m, 366 days measured1997: lowest 336.35 m (1997-05-09), highest 336.78 m (1997-10-04), average 336.53 m, 343 days measured1998: lowest 335.69 m (1998-11-08), highest 336.40 m (1998-02-14), average 336.16 m, 247 days measured1999: lowest 335.18 m (1999-04-25), highest 335.93 m (1999-09-20), average 335.60 m, 276 days measured2000: lowest 335.48 m (2000-04-22), highest 336.29 m (2000-08-28), average 335.92 m, 366 days measured2001: lowest 335.47 m (2001-12-30), highest 335.99 m (2001-01-04), average 335.71 m, 365 days measured2002: lowest 334.95 m (2002-06-24), highest 335.46 m (2002-01-01), average 335.21 m, 365 days measured2003: lowest 335.23 m (2003-03-29), highest 335.59 m (2003-08-24), average 335.44 m, 285 days measured2004: lowest 335.04 m (2004-05-08), highest 335.72 m (2004-10-30), average 335.40 m, 366 days measured2005: lowest 335.48 m (2005-04-08), highest 336.72 m (2005-08-30), average 336.13 m, 365 days measured2006: lowest 336.28 m (2006-10-11), highest 336.63 m (2006-01-21), average 336.44 m, 365 days measured2007: lowest 336.19 m (2007-04-19), highest 336.57 m (2007-11-17), average 336.40 m, 334 days measured2008: lowest 336.29 m (2008-08-21), highest 336.65 m (2008-09-24), average 336.46 m, 366 days measured2009: lowest 336.17 m (2009-05-12), highest 336.66 m (2009-09-24), average 336.44 m, 336 days measured2010: lowest 335.92 m (2010-05-23), highest 336.38 m (2010-11-13), average 336.17 m, 365 days measured2011: lowest 336.03 m (2011-05-06), highest 336.59 m (2011-10-27), average 336.30 m, 365 days measured2012: lowest 336.29 m (2012-04-27), highest 336.63 m (2012-07-19), average 336.44 m, 336 days measured2013: lowest 336.04 m (2013-04-18), highest 336.37 m (2013-01-03), average 336.19 m, 365 days measured2014: lowest 335.67 m (2014-04-27), highest 336.47 m (2014-09-29), average 336.10 m, 365 days measured2015: lowest 335.52 m (2015-12-28), highest 336.30 m (2015-01-01), average 335.92 m, 365 days measured2016: lowest 335.28 m (2016-04-27), highest 336.39 m (2016-12-28), average 335.79 m, 366 days measured2017: lowest 336.10 m (2017-09-20), highest 336.61 m (2017-06-11), average 336.40 m, 365 days measured2018: lowest 336.15 m (2018-12-21), highest 336.67 m (2018-08-14), average 336.33 m, 365 days measured2019: lowest 335.77 m (2019-04-20), highest 336.54 m (2019-09-24), average 336.12 m, 365 days measured2020: lowest 335.99 m (2020-05-08), highest 336.70 m (2020-08-09), average 336.30 m, 366 days measured2021: lowest 335.80 m (2021-05-14), highest 336.47 m (2021-07-23), average 336.18 m, 365 days measured2022: lowest 335.78 m (2022-12-28), highest 336.46 m (2022-07-13), average 336.12 m, 365 days measured2023: lowest 334.78 m (2023-12-29), highest 335.79 m (2023-01-01), average 335.31 m, 358 days measured2024: lowest 334.59 m (2024-04-05), highest 335.52 m (2024-10-18), average 335.04 m, 366 days measured2025: lowest 335.29 m (2025-05-03), highest 336.18 m (2025-10-14), average 335.72 m, 365 days measured2026: lowest 336.52 m (2026-10-10), highest 336.73 m (2026-09-27), average 336.61 m, 30 days measured
333.7334.6335.4336.2337.0193019541978200220261930: lowest 333.93 m (1930-10-18), highest 334.15 m (1930-07-05), average 334.02 m, 25 days measured1931: lowest 333.91 m (1931-04-20), highest 334.52 m (1931-10-09), average 334.22 m, 50 days measured1932: lowest 334.40 m (1932-03-22), highest 334.88 m (1932-08-03), average 334.63 m, 51 days measured1933: lowest 334.19 m (1933-05-20), highest 334.85 m (1933-07-15), average 334.54 m, 50 days measured1934: lowest 334.16 m (1934-04-27), highest 334.87 m (1934-08-04), average 334.59 m, 50 days measured1935: lowest 334.38 m (1935-12-23), highest 334.74 m (1935-06-22), average 334.55 m, 44 days measured1936: lowest 334.12 m (1936-05-23), highest 334.64 m (1936-08-15), average 334.39 m, 51 days measured1937: lowest 334.12 m (1937-04-10), highest 334.47 m (1937-09-11), average 334.26 m, 54 days measured1938: lowest 334.17 m (1938-04-09), highest 335.00 m (1938-09-19), average 334.60 m, 50 days measured1939: lowest 334.77 m (1939-04-17), highest 335.43 m (1939-08-14), average 335.12 m, 53 days measured1940: lowest 334.66 m (1940-11-16), highest 335.24 m (1940-01-13), average 335.07 m, 52 days measured1941: lowest 334.64 m (1941-04-15), highest 335.78 m (1941-12-27), average 335.25 m, 51 days measured1942: lowest 335.69 m (1942-04-18), highest 336.27 m (1942-08-22), average 335.95 m, 51 days measured1943: lowest 335.46 m (1943-04-24), highest 336.24 m (1943-09-25), average 335.89 m, 52 days measured1944: lowest 336.00 m (1944-04-22), highest 336.57 m (1944-10-14), average 336.25 m, 48 days measured1945: lowest 336.20 m (1945-06-02), highest 336.47 m (1945-01-06), average 336.35 m, 48 days measured1946: lowest 335.86 m (1946-09-25), highest 336.52 m (1946-07-27), average 336.21 m, 45 days measured1947: lowest 335.56 m (1947-09-30), highest 336.56 m (1947-12-14), average 335.90 m, 43 days measured1948: lowest 335.93 m (1948-08-25), highest 336.56 m (1948-01-03), average 336.17 m, 48 days measured1949: lowest 335.82 m (1949-04-20), highest 336.65 m (1949-08-05), average 336.22 m, 52 days measured1950: lowest 336.13 m (1950-05-03), highest 336.50 m (1950-01-08), average 336.32 m, 46 days measured1951: lowest 336.09 m (1951-04-29), highest 336.57 m (1951-07-04), average 336.32 m, 46 days measured1952: lowest 335.86 m (1952-04-13), highest 336.54 m (1952-12-21), average 336.15 m, 51 days measured1953: lowest 336.36 m (1953-04-26), highest 336.55 m (1953-01-04), average 336.46 m, 47 days measured1954: lowest 336.24 m (1954-05-09), highest 336.60 m (1954-07-26), average 336.40 m, 48 days measured1955: lowest 336.18 m (1955-04-24), highest 336.69 m (1955-08-21), average 336.44 m, 62 days measured1956: lowest 335.51 m (1956-11-06), highest 336.17 m (1956-01-01), average 335.77 m, 61 days measured1957: lowest 335.27 m (1957-04-21), highest 336.36 m (1957-10-25), average 335.82 m, 49 days measured1958: lowest 336.11 m (1958-04-20), highest 336.44 m (1958-10-25), average 336.33 m, 52 days measured1959: lowest 336.16 m (1959-05-03), highest 336.56 m (1959-07-18), average 336.31 m, 46 days measured1960: lowest 335.96 m (1960-05-01), highest 336.66 m (1960-07-15), average 336.20 m, 46 days measured1961: lowest 336.04 m (1961-04-23), highest 336.61 m (1961-08-25), average 336.27 m, 36 days measured1962: lowest 335.99 m (1962-05-13), highest 336.60 m (1962-08-03), average 336.32 m, 38 days measured1963: lowest 335.77 m (1963-04-28), highest 336.54 m (1963-10-23), average 336.16 m, 47 days measured1964: lowest 335.98 m (1964-04-28), highest 336.69 m (1964-10-21), average 336.35 m, 40 days measured1965: lowest 336.20 m (1965-05-05), highest 336.60 m (1965-01-12), average 336.44 m, 40 days measured1966: lowest 336.08 m (1966-04-27), highest 336.51 m (1966-08-03), average 336.32 m, 39 days measured1967: lowest 335.71 m (1967-05-14), highest 336.44 m (1967-08-08), average 336.15 m, 50 days measured1968: lowest 335.44 m (1968-05-12), highest 336.20 m (1968-01-07), average 335.65 m, 51 days measured1969: lowest 335.07 m (1969-05-04), highest 335.58 m (1969-01-05), average 335.34 m, 51 days measured1970: lowest 334.84 m (1970-06-29), highest 335.71 m (1970-12-18), average 335.31 m, 185 days measured1971: lowest 335.77 m (1971-01-29), highest 336.67 m (1971-10-29), average 336.30 m, 330 days measured1972: lowest 336.14 m (1972-09-20), highest 336.58 m (1972-09-03), average 336.47 m, 205 days measured1973: lowest 335.83 m (1973-05-10), highest 336.46 m (1973-12-24), average 336.21 m, 358 days measured1974: lowest 336.27 m (1974-04-26), highest 336.61 m (1974-12-28), average 336.45 m, 365 days measured1975: lowest 336.21 m (1975-05-23), highest 336.69 m (1975-08-30), average 336.45 m, 233 days measured1976: lowest 336.10 m (1976-04-06), highest 336.85 m (1976-09-03), average 336.60 m, 190 days measured1977: lowest 336.09 m (1977-04-16), highest 336.70 m (1977-07-18), average 336.44 m, 312 days measured1978: lowest 335.66 m (1978-04-29), highest 336.56 m (1978-09-05), average 336.23 m, 276 days measured1979: lowest 335.92 m (1979-05-17), highest 336.51 m (1979-09-22), average 336.28 m, 365 days measured1980: lowest 335.72 m (1980-09-15), highest 336.40 m (1980-01-01), average 335.90 m, 86 days measured1981: lowest 335.02 m (1981-11-15), highest 335.72 m (1981-01-05), average 335.42 m, 317 days measured1982: lowest 334.53 m (1982-03-22), highest 335.39 m (1982-09-11), average 335.16 m, 155 days measured1983: lowest 334.54 m (1983-04-26), highest 335.78 m (1983-11-03), average 335.15 m, 301 days measured1984: lowest 335.16 m (1984-12-31), highest 335.62 m (1984-01-09), average 335.36 m, 205 days measured1985: lowest 334.76 m (1985-04-20), highest 335.86 m (1985-10-29), average 335.31 m, 313 days measured1986: lowest 335.28 m (1986-04-07), highest 336.58 m (1986-10-09), average 336.32 m, 185 days measured1987: lowest 335.65 m (1987-12-31), highest 336.35 m (1987-01-07), average 336.04 m, 151 days measured1988: lowest 335.02 m (1988-04-29), highest 335.64 m (1988-01-02), average 335.25 m, 182 days measured1989: lowest 334.78 m (1989-04-15), highest 335.81 m (1989-09-14), average 335.39 m, 48 days measured1990: lowest 335.16 m (1990-04-02), highest 335.58 m (1990-08-01), average 335.46 m, 218 days measured1991: lowest 335.09 m (1991-04-18), highest 335.86 m (1991-10-06), average 335.41 m, 280 days measured1992: lowest 335.06 m (1992-04-18), highest 335.73 m (1992-10-01), average 335.41 m, 366 days measured1993: lowest 334.70 m (1993-06-25), highest 335.40 m (1993-01-01), average 334.99 m, 365 days measured1994: lowest 334.84 m (1994-04-28), highest 335.99 m (1994-08-24), average 335.40 m, 365 days measured1995: lowest 335.07 m (1995-08-09), highest 335.79 m (1995-12-31), average 335.36 m, 365 days measured1996: lowest 335.56 m (1996-05-03), highest 336.52 m (1996-12-31), average 336.01 m, 366 days measured1997: lowest 336.35 m (1997-05-09), highest 336.78 m (1997-10-04), average 336.53 m, 343 days measured1998: lowest 335.69 m (1998-11-08), highest 336.40 m (1998-02-14), average 336.16 m, 247 days measured1999: lowest 335.18 m (1999-04-25), highest 335.93 m (1999-09-20), average 335.60 m, 276 days measured2000: lowest 335.48 m (2000-04-22), highest 336.29 m (2000-08-28), average 335.92 m, 366 days measured2001: lowest 335.47 m (2001-12-30), highest 335.99 m (2001-01-04), average 335.71 m, 365 days measured2002: lowest 334.95 m (2002-06-24), highest 335.46 m (2002-01-01), average 335.21 m, 365 days measured2003: lowest 335.23 m (2003-03-29), highest 335.59 m (2003-08-24), average 335.44 m, 285 days measured2004: lowest 335.04 m (2004-05-08), highest 335.72 m (2004-10-30), average 335.40 m, 366 days measured2005: lowest 335.48 m (2005-04-08), highest 336.72 m (2005-08-30), average 336.13 m, 365 days measured2006: lowest 336.28 m (2006-10-11), highest 336.63 m (2006-01-21), average 336.44 m, 365 days measured2007: lowest 336.19 m (2007-04-19), highest 336.57 m (2007-11-17), average 336.40 m, 334 days measured2008: lowest 336.29 m (2008-08-21), highest 336.65 m (2008-09-24), average 336.46 m, 366 days measured2009: lowest 336.17 m (2009-05-12), highest 336.66 m (2009-09-24), average 336.44 m, 336 days measured2010: lowest 335.92 m (2010-05-23), highest 336.38 m (2010-11-13), average 336.17 m, 365 days measured2011: lowest 336.03 m (2011-05-06), highest 336.59 m (2011-10-27), average 336.30 m, 365 days measured2012: lowest 336.29 m (2012-04-27), highest 336.63 m (2012-07-19), average 336.44 m, 336 days measured2013: lowest 336.04 m (2013-04-18), highest 336.37 m (2013-01-03), average 336.19 m, 365 days measured2014: lowest 335.67 m (2014-04-27), highest 336.47 m (2014-09-29), average 336.10 m, 365 days measured2015: lowest 335.52 m (2015-12-28), highest 336.30 m (2015-01-01), average 335.92 m, 365 days measured2016: lowest 335.28 m (2016-04-27), highest 336.39 m (2016-12-28), average 335.79 m, 366 days measured2017: lowest 336.10 m (2017-09-20), highest 336.61 m (2017-06-11), average 336.40 m, 365 days measured2018: lowest 336.15 m (2018-12-21), highest 336.67 m (2018-08-14), average 336.33 m, 365 days measured2019: lowest 335.77 m (2019-04-20), highest 336.54 m (2019-09-24), average 336.12 m, 365 days measured2020: lowest 335.99 m (2020-05-08), highest 336.70 m (2020-08-09), average 336.30 m, 366 days measured2021: lowest 335.80 m (2021-05-14), highest 336.47 m (2021-07-23), average 336.18 m, 365 days measured2022: lowest 335.78 m (2022-12-28), highest 336.46 m (2022-07-13), average 336.12 m, 365 days measured2023: lowest 334.78 m (2023-12-29), highest 335.79 m (2023-01-01), average 335.31 m, 358 days measured2024: lowest 334.59 m (2024-04-05), highest 335.52 m (2024-10-18), average 335.04 m, 366 days measured2025: lowest 335.29 m (2025-05-03), highest 336.18 m (2025-10-14), average 335.72 m, 365 days measured2026: lowest 336.52 m (2026-10-10), highest 336.73 m (2026-09-27), average 336.61 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.

  • 2024334.589 m on Apr 5
  • 1993334.696 m on Jun 25
  • 2023334.780 m on Dec 29
  • 1994334.838 m on Apr 28
  • 2002334.948 m on Jun 24

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (30 days)336.609336.521Oct 10336.732Sep 27
2025335.719335.287May 3336.179Oct 14
2024335.043334.589Apr 5335.518Oct 18
2023335.306334.780Dec 29335.789Jan 1
2022336.118335.784Dec 28336.461Jul 13
2021336.185335.801May 14336.473Jul 23
2020336.303335.995May 8336.698Aug 9
2019336.121335.773Apr 20336.537Sep 24
2018336.330336.146Dec 21336.665Aug 14
2017336.403336.101Sep 20336.614Jun 11
2016335.787335.278Apr 27336.394Dec 28
2015335.920335.520Dec 28336.300Jan 1
2014336.097335.673Apr 27336.475Sep 29
2013336.189336.040Apr 18336.373Jan 3
2012336.436336.287Apr 27336.626Jul 19
2011336.304336.031May 6336.595Oct 27
2010336.166335.923May 23336.378Nov 13
2009336.445336.169May 12336.658Sep 24
2008336.457336.291Aug 21336.653Sep 24
2007336.400336.190Apr 19336.569Nov 17
2006336.442336.282Oct 11336.628Jan 21
2005336.128335.482Apr 8336.716Aug 30
2004335.396335.041May 8335.717Oct 30
2003 (285 days)335.435335.229Mar 29335.589Aug 24
2002335.212334.948Jun 24335.461Jan 1
2001335.706335.465Dec 30335.992Jan 4
2000335.924335.476Apr 22336.294Aug 28
1999 (276 days)335.598335.179Apr 25335.926Sep 20
1998 (247 days)336.163335.691Nov 8336.401Feb 14
1997336.531336.353May 9336.778Oct 4
1996336.007335.563May 3336.522Dec 31
1995335.362335.071Aug 9335.785Dec 31
1994335.401334.838Apr 28335.989Aug 24
1993334.992334.696Jun 25335.396Jan 1
1992335.407335.061Apr 18335.726Oct 1
1991 (280 days)335.406335.085Apr 18335.860Oct 6
1990 (218 days)335.464335.162Apr 2335.575Aug 1
1989 (48 days)335.392334.779Apr 15335.809Sep 14
1988 (182 days)335.248335.020Apr 29335.639Jan 2
1987 (151 days)336.042335.647Dec 31336.354Jan 7
1986 (185 days)336.319335.275Apr 7336.583Oct 9
1985 (313 days)335.307334.759Apr 20335.862Oct 29
1984 (205 days)335.364335.157Dec 31335.622Jan 9
1983 (301 days)335.149334.537Apr 26335.779Nov 3
1982 (155 days)335.165334.528Mar 22335.392Sep 11
1981 (317 days)335.421335.020Nov 15335.722Jan 5
1980 (86 days)335.899335.721Sep 15336.398Jan 1
1979336.281335.924May 17336.510Sep 22
1978 (276 days)336.229335.664Apr 29336.555Sep 5
1977 (312 days)336.437336.091Apr 16336.700Jul 18
1976 (190 days)336.596336.103Apr 6336.847Sep 3
1975 (233 days)336.453336.213May 23336.685Aug 30
1974336.454336.265Apr 26336.609Dec 28
1973336.214335.826May 10336.463Dec 24
1972 (205 days)336.470336.136Sep 20336.578Sep 3
1971336.296335.774Jan 29336.667Oct 29
1970 (185 days)335.311334.838Jun 29335.713Dec 18
1969 (51 days)335.338335.070May 4335.582Jan 5
1968 (51 days)335.646335.435May 12336.197Jan 7
1967 (50 days)336.145335.707May 14336.441Aug 8
1966 (39 days)336.322336.082Apr 27336.508Aug 3
1965 (40 days)336.443336.200May 5336.600Jan 12
1964 (40 days)336.353335.984Apr 28336.694Oct 21
1963 (47 days)336.157335.774Apr 28336.542Oct 23
1962 (38 days)336.320335.993May 13336.603Aug 3
1961 (36 days)336.269336.036Apr 23336.612Aug 25
1960 (46 days)336.198335.963May 1336.655Jul 15
1959 (46 days)336.313336.155May 3336.563Jul 18
1958 (52 days)336.330336.115Apr 20336.444Oct 25
1957 (49 days)335.823335.268Apr 21336.356Oct 25
1956 (61 days)335.771335.509Nov 6336.170Jan 1
1955 (62 days)336.436336.179Apr 24336.685Aug 21
1954 (48 days)336.398336.243May 9336.600Jul 26
1953 (47 days)336.464336.359Apr 26336.545Jan 4
1952 (51 days)336.154335.859Apr 13336.542Dec 21
1951 (46 days)336.324336.091Apr 29336.569Jul 4
1950 (46 days)336.321336.133May 3336.496Jan 8
1949 (52 days)336.220335.816Apr 20336.646Aug 5
1948 (48 days)336.166335.926Aug 25336.560Jan 3
1947 (43 days)335.901335.557Sep 30336.557Dec 14
1946 (45 days)336.210335.862Sep 25336.517Jul 27
1945 (48 days)336.351336.197Jun 2336.472Jan 6
1944 (48 days)336.251335.996Apr 22336.566Oct 14
1943 (52 days)335.892335.460Apr 24336.240Sep 25
1942 (51 days)335.949335.688Apr 18336.265Aug 22
1941 (51 days)335.250334.637Apr 15335.777Dec 27
1940 (52 days)335.067334.661Nov 16335.240Jan 13
1939 (53 days)335.120334.768Apr 17335.429Aug 14
1938 (50 days)334.597334.174Apr 9335.000Sep 19
1937 (54 days)334.264334.122Apr 10334.466Sep 11
1936 (51 days)334.386334.122May 23334.643Aug 15
1935 (44 days)334.548334.378Dec 23334.744Jun 22
1934 (50 days)334.590334.161Apr 27334.872Aug 4
1933 (50 days)334.544334.186May 20334.847Jul 15
1932 (51 days)334.628334.396Mar 22334.884Aug 3
1931 (50 days)334.217333.911Apr 20334.515Oct 9
1930 (25 days)334.025333.933Oct 18334.146Jul 5

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

Monthly averages

MonthAverageLowestHighest
January335.898333.975336.628
February335.812333.957336.588
March335.752333.927336.494
April335.677333.911336.424
May335.700333.945336.534
June335.820334.085336.688
July335.946334.134336.700
August336.035334.128336.834
September336.044333.945336.847
October336.034333.933336.778
November335.990333.951336.708
December335.969333.963336.646

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Daily levels as CSV (19,217 rows; credit the original agencies listed below)