Country: Canada
United StatesCanadaUnited Kingdom

Harrison Lake water level history

Daily records since 1933 · Level today: 8.869 m

Highest on record
13.298 m
Jun 11, 1948
Lowest on record
8.211 m
Feb 3, 1979
Today
8.869 m
Oct 23, 2026
Years of data
94
since 1933

In short

Across 90 complete years, 1993 had the lowest average level (9.282 m) and 1934 the highest (10.197 m).

On average the lake is lowest in March (9.054 m) and highest in June (11.008 m).

Harrison Lake level, all years

Loading chart…

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

Each year's lowest and highest level

891112141933194519571969198119932005201720261933: lowest 9.46 m (1933-04-26), highest 11.83 m (1933-07-18), average 10.39 m, 250 days measured1934: lowest 9.24 m (1934-10-06), highest 11.47 m (1934-06-14), average 10.20 m, 365 days measured1935: lowest 9.14 m (1935-04-12), highest 11.39 m (1935-06-13), average 9.95 m, 365 days measured1936: lowest 8.70 m (1936-02-19), highest 12.31 m (1936-06-05), average 9.77 m, 366 days measured1937: lowest 8.63 m (1937-02-08), highest 11.52 m (1937-06-12), average 9.79 m, 365 days measured1938: lowest 8.83 m (1938-02-19), highest 11.52 m (1938-06-26), average 9.80 m, 365 days measured1939: lowest 8.73 m (1939-03-16), highest 11.39 m (1939-12-10), average 10.02 m, 365 days measured1940: lowest 9.11 m (1940-01-26), highest 11.27 m (1940-10-23), average 9.94 m, 366 days measured1941: lowest 9.11 m (1941-03-16), highest 11.06 m (1941-12-04), average 9.92 m, 365 days measured1942: lowest 8.80 m (1942-02-28), highest 11.27 m (1942-06-10), average 9.69 m, 365 days measured1943: lowest 8.91 m (1943-03-19), highest 11.32 m (1943-07-05), average 9.72 m, 365 days measured1944: lowest 8.70 m (1944-03-07), highest 10.81 m (1944-06-14), average 9.69 m, 366 days measured1945: lowest 9.03 m (1945-03-07), highest 11.52 m (1945-06-02), average 9.79 m, 365 days measured1946: lowest 8.73 m (1946-11-22), highest 11.83 m (1946-05-28), average 9.82 m, 365 days measured1947: lowest 8.78 m (1947-01-15), highest 11.29 m (1947-06-03), average 9.79 m, 365 days measured1948: lowest 8.65 m (1948-02-13), highest 13.30 m (1948-06-11), average 9.83 m, 366 days measured1949: lowest 8.40 m (1949-02-06), highest 11.42 m (1949-05-17), average 9.64 m, 365 days measured1950: lowest 8.70 m (1950-02-04), highest 13.15 m (1950-06-22), average 9.92 m, 365 days measured1951: lowest 8.78 m (1951-12-31), highest 11.29 m (1951-07-04), average 9.77 m, 365 days measured1952: lowest 8.43 m (1952-01-19), highest 11.31 m (1952-06-07), average 9.53 m, 366 days measured1953: lowest 8.89 m (1953-03-10), highest 11.36 m (1953-07-16), average 9.89 m, 365 days measured1954: lowest 8.89 m (1954-02-03), highest 11.69 m (1954-07-11), average 9.94 m, 352 days measured1955: lowest 8.57 m (1955-03-28), highest 11.72 m (1955-07-18), average 9.69 m, 363 days measured1956: lowest 8.50 m (1956-02-27), highest 12.21 m (1956-06-11), average 9.83 m, 345 days measured1957: lowest 8.51 m (1957-02-22), highest 11.44 m (1957-06-06), average 9.60 m, 356 days measured1958: lowest 9.02 m (1958-04-08), highest 11.97 m (1958-05-30), average 9.87 m, 343 days measured1959: lowest 8.78 m (1959-02-25), highest 11.51 m (1959-06-26), average 9.81 m, 357 days measured1960: lowest 8.64 m (1960-01-26), highest 11.47 m (1960-07-08), average 9.71 m, 338 days measured1961: lowest 8.84 m (1961-12-20), highest 12.09 m (1961-06-08), average 9.86 m, 365 days measured1962: lowest 8.54 m (1962-03-23), highest 11.09 m (1962-06-27), average 9.72 m, 363 days measured1963: lowest 8.77 m (1963-02-02), highest 11.14 m (1963-06-20), average 9.81 m, 365 days measured1964: lowest 8.72 m (1964-03-30), highest 12.24 m (1964-06-16), average 9.84 m, 351 days measured1965: lowest 8.65 m (1965-01-16), highest 11.20 m (1965-06-12), average 9.70 m, 358 days measured1966: lowest 8.68 m (1966-03-06), highest 11.19 m (1966-06-20), average 9.81 m, 365 days measured1967: lowest 8.79 m (1967-03-15), highest 12.82 m (1967-06-24), average 9.96 m, 365 days measured1968: lowest 9.07 m (1968-04-28), highest 11.93 m (1968-07-13), average 10.00 m, 362 days measured1969: lowest 8.54 m (1969-03-14), highest 12.35 m (1969-06-14), average 9.76 m, 335 days measured1970: lowest 8.71 m (1970-11-07), highest 11.31 m (1970-06-09), average 9.38 m, 342 days measured1971: lowest 8.56 m (1971-01-13), highest 11.46 m (1971-06-09), average 9.73 m, 363 days measured1972: lowest 8.55 m (1972-12-15), highest 12.50 m (1972-06-12), average 9.88 m, 341 days measured1973: lowest 8.68 m (1973-02-24), highest 11.05 m (1973-06-30), average 9.58 m, 357 days measured1974: lowest 8.81 m (1974-11-05), highest 12.62 m (1974-06-23), average 9.92 m, 365 days measured1975: lowest 8.53 m (1975-02-23), highest 11.76 m (1975-07-13), average 9.67 m, 349 days measured1976: lowest 8.66 m (1976-03-17), highest 11.63 m (1976-07-10), average 9.75 m, 366 days measured1977: lowest 8.69 m (1977-10-22), highest 10.65 m (1977-06-24), average 9.48 m, 365 days measured1978: lowest 8.59 m (1978-01-19), highest 11.06 m (1978-06-10), average 9.47 m, 365 days measured1979: lowest 8.21 m (1979-02-03), highest 10.73 m (1979-06-10), average 9.48 m, 365 days measured1980: lowest 8.70 m (1980-01-31), highest 11.74 m (1980-12-28), average 9.71 m, 366 days measured1981: lowest 8.78 m (1981-03-28), highest 11.11 m (1981-06-06), average 9.74 m, 359 days measured1982: lowest 8.68 m (1982-04-10), highest 12.42 m (1982-06-23), average 9.68 m, 365 days measured1983: lowest 8.56 m (1983-12-31), highest 11.52 m (1983-06-03), average 9.77 m, 356 days measured1984: lowest 8.56 m (1984-01-01), highest 11.59 m (1984-06-30), average 9.65 m, 366 days measured1985: lowest 8.27 m (1985-12-31), highest 11.51 m (1985-06-05), average 9.32 m, 365 days measured1986: lowest 8.27 m (1986-01-01), highest 12.13 m (1986-06-05), average 9.57 m, 365 days measured1987: lowest 8.54 m (1987-10-30), highest 11.26 m (1987-07-06), average 9.64 m, 365 days measured1988: lowest 8.43 m (1988-01-12), highest 10.94 m (1988-06-24), average 9.51 m, 366 days measured1989: lowest 8.51 m (1989-03-05), highest 11.15 m (1989-06-15), average 9.48 m, 365 days measured1990: lowest 8.71 m (1990-03-05), highest 11.87 m (1990-11-14), average 9.70 m, 365 days measured1991: lowest 8.65 m (1991-03-31), highest 11.62 m (1991-09-02), average 9.68 m, 365 days measured1992: lowest 8.62 m (1992-12-31), highest 10.93 m (1992-06-30), average 9.57 m, 366 days measured1993: lowest 8.29 m (1993-01-19), highest 11.43 m (1993-05-22), average 9.28 m, 365 days measured1994: lowest 8.69 m (1994-11-28), highest 10.59 m (1994-07-03), average 9.50 m, 365 days measured1995: lowest 8.79 m (1995-01-28), highest 11.27 m (1995-11-30), average 9.76 m, 365 days measured1996: lowest 8.75 m (1996-12-26), highest 10.97 m (1996-07-17), average 9.59 m, 361 days measured1997: lowest 8.86 m (1997-03-16), highest 12.25 m (1997-06-06), average 9.97 m, 264 days measured1998: lowest 8.71 m (1998-11-11), highest 11.08 m (1998-06-11), average 9.61 m, 357 days measured1999: lowest 8.91 m (1999-10-25), highest 12.31 m (1999-07-17), average 9.97 m, 365 days measured2000: lowest 8.55 m (2000-03-01), highest 11.18 m (2000-07-01), average 9.44 m, 366 days measured2001: lowest 8.38 m (2001-03-08), highest 10.53 m (2001-08-25), average 9.43 m, 365 days measured2002: lowest 8.41 m (2002-11-06), highest 12.10 m (2002-06-30), average 9.57 m, 365 days measured2003: lowest 8.63 m (2003-03-10), highest 12.06 m (2003-10-21), average 9.65 m, 365 days measured2004: lowest 8.75 m (2004-03-05), highest 10.63 m (2004-06-28), average 9.61 m, 366 days measured2005: lowest 8.75 m (2005-12-20), highest 10.93 m (2005-01-25), average 9.67 m, 365 days measured2006: lowest 8.58 m (2006-10-25), highest 11.41 m (2006-06-15), average 9.65 m, 365 days measured2007: lowest 8.81 m (2007-02-07), highest 12.08 m (2007-06-08), average 9.89 m, 359 days measured2008: lowest 8.63 m (2008-04-12), highest 12.02 m (2008-05-30), average 9.55 m, 366 days measured2009: lowest 8.42 m (2009-02-24), highest 11.09 m (2009-06-10), average 9.50 m, 365 days measured2010: lowest 8.98 m (2010-12-07), highest 11.25 m (2010-07-13), average 9.77 m, 365 days measured2011: lowest 8.78 m (2011-03-09), highest 11.82 m (2011-06-11), average 9.83 m, 365 days measured2012: lowest 8.77 m (2012-03-03), highest 12.42 m (2012-06-25), average 9.85 m, 366 days measured2013: lowest 8.54 m (2013-12-23), highest 11.90 m (2013-05-15), average 9.65 m, 365 days measured2014: lowest 8.49 m (2014-02-10), highest 11.51 m (2014-05-29), average 9.77 m, 365 days measured2015: lowest 9.04 m (2015-03-11), highest 11.06 m (2015-06-03), average 9.75 m, 365 days measured2016: lowest 8.88 m (2016-12-31), highest 11.20 m (2016-11-14), average 9.92 m, 366 days measured2017: lowest 8.56 m (2017-01-16), highest 12.04 m (2017-06-04), average 9.79 m, 365 days measured2018: lowest 8.71 m (2018-03-26), highest 12.31 m (2018-05-21), average 9.77 m, 365 days measured2019: lowest 8.37 m (2019-03-19), highest 11.32 m (2019-06-03), average 9.52 m, 365 days measured2020: lowest 8.70 m (2020-03-27), highest 12.09 m (2020-06-29), average 9.97 m, 366 days measured2021: lowest 8.87 m (2021-02-21), highest 12.24 m (2021-07-01), average 9.98 m, 365 days measured2022: lowest 8.38 m (2022-12-24), highest 12.07 m (2022-07-05), average 9.62 m, 360 days measured2023: lowest 8.45 m (2023-04-06), highest 11.99 m (2023-05-22), average 9.47 m, 364 days measured2024: lowest 9.07 m (2024-04-24), highest 11.10 m (2024-02-03), average 9.68 m, 361 days measured2025: lowest 8.46 m (2025-02-19), highest 9.80 m (2025-04-12), average 9.17 m, 117 days measured2026: lowest 8.91 m (2026-10-21), highest 9.11 m (2026-09-22), average 9.03 m, 30 days measured
89111214193319571981200520261933: lowest 9.46 m (1933-04-26), highest 11.83 m (1933-07-18), average 10.39 m, 250 days measured1934: lowest 9.24 m (1934-10-06), highest 11.47 m (1934-06-14), average 10.20 m, 365 days measured1935: lowest 9.14 m (1935-04-12), highest 11.39 m (1935-06-13), average 9.95 m, 365 days measured1936: lowest 8.70 m (1936-02-19), highest 12.31 m (1936-06-05), average 9.77 m, 366 days measured1937: lowest 8.63 m (1937-02-08), highest 11.52 m (1937-06-12), average 9.79 m, 365 days measured1938: lowest 8.83 m (1938-02-19), highest 11.52 m (1938-06-26), average 9.80 m, 365 days measured1939: lowest 8.73 m (1939-03-16), highest 11.39 m (1939-12-10), average 10.02 m, 365 days measured1940: lowest 9.11 m (1940-01-26), highest 11.27 m (1940-10-23), average 9.94 m, 366 days measured1941: lowest 9.11 m (1941-03-16), highest 11.06 m (1941-12-04), average 9.92 m, 365 days measured1942: lowest 8.80 m (1942-02-28), highest 11.27 m (1942-06-10), average 9.69 m, 365 days measured1943: lowest 8.91 m (1943-03-19), highest 11.32 m (1943-07-05), average 9.72 m, 365 days measured1944: lowest 8.70 m (1944-03-07), highest 10.81 m (1944-06-14), average 9.69 m, 366 days measured1945: lowest 9.03 m (1945-03-07), highest 11.52 m (1945-06-02), average 9.79 m, 365 days measured1946: lowest 8.73 m (1946-11-22), highest 11.83 m (1946-05-28), average 9.82 m, 365 days measured1947: lowest 8.78 m (1947-01-15), highest 11.29 m (1947-06-03), average 9.79 m, 365 days measured1948: lowest 8.65 m (1948-02-13), highest 13.30 m (1948-06-11), average 9.83 m, 366 days measured1949: lowest 8.40 m (1949-02-06), highest 11.42 m (1949-05-17), average 9.64 m, 365 days measured1950: lowest 8.70 m (1950-02-04), highest 13.15 m (1950-06-22), average 9.92 m, 365 days measured1951: lowest 8.78 m (1951-12-31), highest 11.29 m (1951-07-04), average 9.77 m, 365 days measured1952: lowest 8.43 m (1952-01-19), highest 11.31 m (1952-06-07), average 9.53 m, 366 days measured1953: lowest 8.89 m (1953-03-10), highest 11.36 m (1953-07-16), average 9.89 m, 365 days measured1954: lowest 8.89 m (1954-02-03), highest 11.69 m (1954-07-11), average 9.94 m, 352 days measured1955: lowest 8.57 m (1955-03-28), highest 11.72 m (1955-07-18), average 9.69 m, 363 days measured1956: lowest 8.50 m (1956-02-27), highest 12.21 m (1956-06-11), average 9.83 m, 345 days measured1957: lowest 8.51 m (1957-02-22), highest 11.44 m (1957-06-06), average 9.60 m, 356 days measured1958: lowest 9.02 m (1958-04-08), highest 11.97 m (1958-05-30), average 9.87 m, 343 days measured1959: lowest 8.78 m (1959-02-25), highest 11.51 m (1959-06-26), average 9.81 m, 357 days measured1960: lowest 8.64 m (1960-01-26), highest 11.47 m (1960-07-08), average 9.71 m, 338 days measured1961: lowest 8.84 m (1961-12-20), highest 12.09 m (1961-06-08), average 9.86 m, 365 days measured1962: lowest 8.54 m (1962-03-23), highest 11.09 m (1962-06-27), average 9.72 m, 363 days measured1963: lowest 8.77 m (1963-02-02), highest 11.14 m (1963-06-20), average 9.81 m, 365 days measured1964: lowest 8.72 m (1964-03-30), highest 12.24 m (1964-06-16), average 9.84 m, 351 days measured1965: lowest 8.65 m (1965-01-16), highest 11.20 m (1965-06-12), average 9.70 m, 358 days measured1966: lowest 8.68 m (1966-03-06), highest 11.19 m (1966-06-20), average 9.81 m, 365 days measured1967: lowest 8.79 m (1967-03-15), highest 12.82 m (1967-06-24), average 9.96 m, 365 days measured1968: lowest 9.07 m (1968-04-28), highest 11.93 m (1968-07-13), average 10.00 m, 362 days measured1969: lowest 8.54 m (1969-03-14), highest 12.35 m (1969-06-14), average 9.76 m, 335 days measured1970: lowest 8.71 m (1970-11-07), highest 11.31 m (1970-06-09), average 9.38 m, 342 days measured1971: lowest 8.56 m (1971-01-13), highest 11.46 m (1971-06-09), average 9.73 m, 363 days measured1972: lowest 8.55 m (1972-12-15), highest 12.50 m (1972-06-12), average 9.88 m, 341 days measured1973: lowest 8.68 m (1973-02-24), highest 11.05 m (1973-06-30), average 9.58 m, 357 days measured1974: lowest 8.81 m (1974-11-05), highest 12.62 m (1974-06-23), average 9.92 m, 365 days measured1975: lowest 8.53 m (1975-02-23), highest 11.76 m (1975-07-13), average 9.67 m, 349 days measured1976: lowest 8.66 m (1976-03-17), highest 11.63 m (1976-07-10), average 9.75 m, 366 days measured1977: lowest 8.69 m (1977-10-22), highest 10.65 m (1977-06-24), average 9.48 m, 365 days measured1978: lowest 8.59 m (1978-01-19), highest 11.06 m (1978-06-10), average 9.47 m, 365 days measured1979: lowest 8.21 m (1979-02-03), highest 10.73 m (1979-06-10), average 9.48 m, 365 days measured1980: lowest 8.70 m (1980-01-31), highest 11.74 m (1980-12-28), average 9.71 m, 366 days measured1981: lowest 8.78 m (1981-03-28), highest 11.11 m (1981-06-06), average 9.74 m, 359 days measured1982: lowest 8.68 m (1982-04-10), highest 12.42 m (1982-06-23), average 9.68 m, 365 days measured1983: lowest 8.56 m (1983-12-31), highest 11.52 m (1983-06-03), average 9.77 m, 356 days measured1984: lowest 8.56 m (1984-01-01), highest 11.59 m (1984-06-30), average 9.65 m, 366 days measured1985: lowest 8.27 m (1985-12-31), highest 11.51 m (1985-06-05), average 9.32 m, 365 days measured1986: lowest 8.27 m (1986-01-01), highest 12.13 m (1986-06-05), average 9.57 m, 365 days measured1987: lowest 8.54 m (1987-10-30), highest 11.26 m (1987-07-06), average 9.64 m, 365 days measured1988: lowest 8.43 m (1988-01-12), highest 10.94 m (1988-06-24), average 9.51 m, 366 days measured1989: lowest 8.51 m (1989-03-05), highest 11.15 m (1989-06-15), average 9.48 m, 365 days measured1990: lowest 8.71 m (1990-03-05), highest 11.87 m (1990-11-14), average 9.70 m, 365 days measured1991: lowest 8.65 m (1991-03-31), highest 11.62 m (1991-09-02), average 9.68 m, 365 days measured1992: lowest 8.62 m (1992-12-31), highest 10.93 m (1992-06-30), average 9.57 m, 366 days measured1993: lowest 8.29 m (1993-01-19), highest 11.43 m (1993-05-22), average 9.28 m, 365 days measured1994: lowest 8.69 m (1994-11-28), highest 10.59 m (1994-07-03), average 9.50 m, 365 days measured1995: lowest 8.79 m (1995-01-28), highest 11.27 m (1995-11-30), average 9.76 m, 365 days measured1996: lowest 8.75 m (1996-12-26), highest 10.97 m (1996-07-17), average 9.59 m, 361 days measured1997: lowest 8.86 m (1997-03-16), highest 12.25 m (1997-06-06), average 9.97 m, 264 days measured1998: lowest 8.71 m (1998-11-11), highest 11.08 m (1998-06-11), average 9.61 m, 357 days measured1999: lowest 8.91 m (1999-10-25), highest 12.31 m (1999-07-17), average 9.97 m, 365 days measured2000: lowest 8.55 m (2000-03-01), highest 11.18 m (2000-07-01), average 9.44 m, 366 days measured2001: lowest 8.38 m (2001-03-08), highest 10.53 m (2001-08-25), average 9.43 m, 365 days measured2002: lowest 8.41 m (2002-11-06), highest 12.10 m (2002-06-30), average 9.57 m, 365 days measured2003: lowest 8.63 m (2003-03-10), highest 12.06 m (2003-10-21), average 9.65 m, 365 days measured2004: lowest 8.75 m (2004-03-05), highest 10.63 m (2004-06-28), average 9.61 m, 366 days measured2005: lowest 8.75 m (2005-12-20), highest 10.93 m (2005-01-25), average 9.67 m, 365 days measured2006: lowest 8.58 m (2006-10-25), highest 11.41 m (2006-06-15), average 9.65 m, 365 days measured2007: lowest 8.81 m (2007-02-07), highest 12.08 m (2007-06-08), average 9.89 m, 359 days measured2008: lowest 8.63 m (2008-04-12), highest 12.02 m (2008-05-30), average 9.55 m, 366 days measured2009: lowest 8.42 m (2009-02-24), highest 11.09 m (2009-06-10), average 9.50 m, 365 days measured2010: lowest 8.98 m (2010-12-07), highest 11.25 m (2010-07-13), average 9.77 m, 365 days measured2011: lowest 8.78 m (2011-03-09), highest 11.82 m (2011-06-11), average 9.83 m, 365 days measured2012: lowest 8.77 m (2012-03-03), highest 12.42 m (2012-06-25), average 9.85 m, 366 days measured2013: lowest 8.54 m (2013-12-23), highest 11.90 m (2013-05-15), average 9.65 m, 365 days measured2014: lowest 8.49 m (2014-02-10), highest 11.51 m (2014-05-29), average 9.77 m, 365 days measured2015: lowest 9.04 m (2015-03-11), highest 11.06 m (2015-06-03), average 9.75 m, 365 days measured2016: lowest 8.88 m (2016-12-31), highest 11.20 m (2016-11-14), average 9.92 m, 366 days measured2017: lowest 8.56 m (2017-01-16), highest 12.04 m (2017-06-04), average 9.79 m, 365 days measured2018: lowest 8.71 m (2018-03-26), highest 12.31 m (2018-05-21), average 9.77 m, 365 days measured2019: lowest 8.37 m (2019-03-19), highest 11.32 m (2019-06-03), average 9.52 m, 365 days measured2020: lowest 8.70 m (2020-03-27), highest 12.09 m (2020-06-29), average 9.97 m, 366 days measured2021: lowest 8.87 m (2021-02-21), highest 12.24 m (2021-07-01), average 9.98 m, 365 days measured2022: lowest 8.38 m (2022-12-24), highest 12.07 m (2022-07-05), average 9.62 m, 360 days measured2023: lowest 8.45 m (2023-04-06), highest 11.99 m (2023-05-22), average 9.47 m, 364 days measured2024: lowest 9.07 m (2024-04-24), highest 11.10 m (2024-02-03), average 9.68 m, 361 days measured2025: lowest 8.46 m (2025-02-19), highest 9.80 m (2025-04-12), average 9.17 m, 117 days measured2026: lowest 8.91 m (2026-10-21), highest 9.11 m (2026-09-22), average 9.03 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.

  • 19798.211 m on Feb 3
  • 19868.272 m on Jan 1
  • 19858.273 m on Dec 31
  • 19938.294 m on Jan 19
  • 20198.374 m on Mar 19

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (30 days)9.0288.906Oct 219.111Sep 22
2025 (117 days)9.1688.457Feb 199.805Apr 12
20249.6779.073Apr 2411.101Feb 3
20239.4728.451Apr 611.989May 22
20229.6188.384Dec 2412.075Jul 5
20219.9818.870Feb 2112.235Jul 1
20209.9698.697Mar 2712.089Jun 29
20199.5168.374Mar 1911.323Jun 3
20189.7728.714Mar 2612.312May 21
20179.7958.559Jan 1612.044Jun 4
20169.9238.882Dec 3111.202Nov 14
20159.7479.038Mar 1111.057Jun 3
20149.7738.487Feb 1011.514May 29
20139.6528.543Dec 2311.903May 15
20129.8508.767Mar 312.420Jun 25
20119.8258.783Mar 911.825Jun 11
20109.7738.978Dec 711.246Jul 13
20099.5008.416Feb 2411.088Jun 10
20089.5548.633Apr 1212.017May 30
20079.8858.805Feb 712.077Jun 8
20069.6498.579Oct 2511.414Jun 15
20059.6748.748Dec 2010.934Jan 25
20049.6128.749Mar 510.631Jun 28
20039.6498.634Mar 1012.063Oct 21
20029.5698.407Nov 612.102Jun 30
20019.4288.385Mar 810.528Aug 25
20009.4418.554Mar 111.178Jul 1
19999.9678.910Oct 2512.310Jul 17
19989.6138.713Nov 1111.076Jun 11
1997 (264 days)9.9708.864Mar 1612.250Jun 6
19969.5928.749Dec 2610.973Jul 17
19959.7628.785Jan 2811.274Nov 30
19949.4988.691Nov 2810.588Jul 3
19939.2828.294Jan 1911.427May 22
19929.5698.616Dec 3110.932Jun 30
19919.6838.653Mar 3111.622Sep 2
19909.7008.709Mar 511.871Nov 14
19899.4808.510Mar 511.148Jun 15
19889.5068.428Jan 1210.939Jun 24
19879.6448.540Oct 3011.261Jul 6
19869.5668.272Jan 112.131Jun 5
19859.3248.273Dec 3111.511Jun 5
19849.6548.559Jan 111.594Jun 30
19839.7698.562Dec 3111.520Jun 3
19829.6808.679Apr 1012.423Jun 23
19819.7398.779Mar 2811.108Jun 6
19809.7058.705Jan 3111.744Dec 28
19799.4838.211Feb 310.733Jun 10
19789.4728.589Jan 1911.055Jun 10
19779.4838.693Oct 2210.647Jun 24
19769.7508.659Mar 1711.634Jul 10
19759.6698.531Feb 2311.759Jul 13
19749.9248.809Nov 512.619Jun 23
19739.5798.675Feb 2411.052Jun 30
19729.8848.550Dec 1512.500Jun 12
19719.7298.556Jan 1311.457Jun 9
19709.3778.708Nov 711.305Jun 9
19699.7598.544Mar 1412.354Jun 14
196810.0039.074Apr 2811.933Jul 13
19679.9588.793Mar 1512.823Jun 24
19669.8108.675Mar 611.192Jun 20
19659.7048.650Jan 1611.204Jun 12
19649.8428.723Mar 3012.244Jun 16
19639.8058.772Feb 211.140Jun 20
19629.7218.544Mar 2311.089Jun 27
19619.8638.839Dec 2012.085Jun 8
19609.7138.641Jan 2611.470Jul 8
19599.8088.784Feb 2511.512Jun 26
19589.8659.019Apr 811.969May 30
19579.6008.507Feb 2211.445Jun 6
19569.8288.504Feb 2712.213Jun 11
19559.6888.565Mar 2811.720Jul 18
19549.9448.891Feb 311.689Jul 11
19539.8898.891Mar 1011.357Jul 16
19529.5268.428Jan 1911.305Jun 7
19519.7688.778Dec 3111.293Jul 4
19509.9238.702Feb 413.146Jun 22
19499.6358.397Feb 611.421May 17
19489.8328.650Feb 1313.298Jun 11
19479.7858.778Jan 1511.293Jun 3
19469.8208.726Nov 2211.826May 28
19459.7909.031Mar 711.521Jun 2
19449.6868.702Mar 710.811Jun 14
19439.7168.906Mar 1911.317Jul 5
19429.6938.803Feb 2811.268Jun 10
19419.9209.107Mar 1611.064Dec 4
19409.9369.107Jan 2611.268Oct 23
193910.0248.726Mar 1611.393Dec 10
19389.8028.830Feb 1911.521Jun 26
19379.7888.626Feb 811.521Jun 12
19369.7718.702Feb 1912.308Jun 5
19359.9499.135Apr 1211.393Jun 13
193410.1979.235Oct 611.470Jun 14
1933 (250 days)10.3899.464Apr 2611.826Jul 18

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

Monthly averages

MonthAverageLowestHighest
January9.2088.25110.988
February9.1268.21111.101
March9.0548.37410.269
April9.2658.45111.217
May10.1218.89112.893
June11.0089.68313.298
July10.7219.64412.310
August10.0859.35011.637
September9.6108.80811.622
October9.4448.49412.063
November9.5788.40712.042
December9.4138.27311.744

Download

Daily levels as CSV (33,254 rows; credit the original agencies listed below)