Country: Canada
United StatesCanadaUnited Kingdom

Eastend Reservoir water level history

Daily records since 1937 · Level today: 917.499 m

Highest on record
918.887 m
Apr 9, 1996
Lowest on record
912.500 m
Sep 24, 1981
Today
917.499 m
Oct 23, 2026
Years of data
90
since 1937

In short

Across 5 complete years, 2025 had the lowest average level (917.279 m) and 2022 the highest (917.774 m).

On average the lake is lowest in February (916.108 m) and highest in May (917.968 m).

Eastend Reservoir level, all years

Loading chart…

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

Each year's lowest and highest level

9129149169179191937194819591970198119922003201420261937: lowest 915.27 m (1937-09-04), highest 917.43 m (1937-05-16), average 916.56 m, 123 days measured1938: lowest 915.35 m (1938-10-31), highest 917.69 m (1938-04-30), average 916.92 m, 65 days measured1939: lowest 915.28 m (1939-02-28), highest 917.85 m (1939-05-03), average 916.85 m, 36 days measured1940: lowest 914.76 m (1940-09-03), highest 917.77 m (1940-06-13), average 915.94 m, 43 days measured1941: lowest 914.74 m (1941-08-24), highest 917.51 m (1941-04-13), average 916.02 m, 38 days measured1942: lowest 915.35 m (1942-02-28), highest 917.75 m (1942-06-23), average 916.78 m, 37 days measured1943: lowest 915.19 m (1943-02-28), highest 917.56 m (1943-06-17), average 916.47 m, 40 days measured1944: lowest 915.32 m (1944-10-31), highest 917.75 m (1944-04-20), average 916.82 m, 58 days measured1945: lowest 915.28 m (1945-07-25), highest 917.75 m (1945-06-13), average 916.47 m, 54 days measured1946: lowest 914.71 m (1946-03-06), highest 917.88 m (1946-04-10), average 916.68 m, 135 days measured1947: lowest 915.35 m (1947-02-28), highest 917.94 m (1947-06-08), average 916.95 m, 174 days measured1948: lowest 914.82 m (1948-09-03), highest 918.10 m (1948-05-24), average 916.45 m, 166 days measured1949: lowest 914.40 m (1949-02-28), highest 917.81 m (1949-04-26), average 916.03 m, 166 days measured1950: lowest 915.34 m (1950-03-14), highest 917.86 m (1950-05-13), average 916.75 m, 177 days measured1951: lowest 915.33 m (1951-10-16), highest 917.91 m (1951-06-10), average 916.76 m, 157 days measured1952: lowest 913.78 m (1952-10-31), highest 917.88 m (1952-04-15), average 915.50 m, 54 days measured1953: lowest 915.34 m (1953-02-21), highest 917.85 m (1953-05-26), average 916.66 m, 256 days measured1954: lowest 915.07 m (1954-03-05), highest 918.03 m (1954-06-02), average 916.41 m, 265 days measured1955: lowest 915.37 m (1955-03-25), highest 917.81 m (1955-07-12), average 916.38 m, 247 days measured1956: lowest 915.37 m (1956-10-05), highest 917.99 m (1956-06-04), average 916.69 m, 247 days measured1957: lowest 915.18 m (1957-08-30), highest 917.84 m (1957-05-14), average 916.31 m, 248 days measured1958: lowest 915.39 m (1958-03-01), highest 917.84 m (1958-04-18), average 916.39 m, 254 days measured1959: lowest 915.12 m (1959-03-01), highest 917.97 m (1959-05-02), average 916.62 m, 247 days measured1960: lowest 915.07 m (1960-10-10), highest 918.05 m (1960-05-03), average 916.47 m, 247 days measured1961: lowest 913.85 m (1961-08-29), highest 917.86 m (1961-05-09), average 916.13 m, 248 days measured1962: lowest 915.44 m (1962-11-02), highest 918.28 m (1962-04-17), average 917.13 m, 202 days measured1963: lowest 914.40 m (1963-09-19), highest 918.30 m (1963-04-07), average 917.20 m, 178 days measured1964: lowest 915.38 m (1964-08-10), highest 918.27 m (1964-04-12), average 916.81 m, 191 days measured1965: lowest 915.48 m (1965-03-29), highest 918.24 m (1965-05-28), average 917.16 m, 208 days measured1966: lowest 915.48 m (1966-02-21), highest 918.26 m (1966-04-25), average 917.40 m, 204 days measured1967: lowest 914.96 m (1967-08-28), highest 917.97 m (1967-06-07), average 916.41 m, 211 days measured1968: lowest 915.46 m (1968-10-27), highest 918.18 m (1968-03-26), average 917.13 m, 212 days measured1969: lowest 915.47 m (1969-10-29), highest 918.19 m (1969-05-03), average 916.85 m, 246 days measured1970: lowest 914.89 m (1970-09-03), highest 918.30 m (1970-06-17), average 917.08 m, 188 days measured1971: lowest 915.47 m (1971-10-31), highest 918.35 m (1971-05-20), average 916.64 m, 231 days measured1972: lowest 915.30 m (1972-03-13), highest 918.48 m (1972-04-26), average 916.73 m, 247 days measured1973: lowest 915.03 m (1973-08-13), highest 918.33 m (1973-04-26), average 917.13 m, 186 days measured1974: lowest 915.46 m (1974-10-15), highest 918.32 m (1974-04-28), average 916.71 m, 249 days measured1975: lowest 915.48 m (1975-03-20), highest 918.41 m (1975-06-23), average 916.87 m, 250 days measured1976: lowest 915.43 m (1976-09-21), highest 918.34 m (1976-05-15), average 916.85 m, 256 days measured1977: lowest 914.41 m (1977-08-20), highest 918.16 m (1977-07-01), average 916.48 m, 190 days measured1978: lowest 915.49 m (1978-03-01), highest 918.44 m (1978-05-12), average 917.22 m, 252 days measured1979: lowest 915.20 m (1979-03-10), highest 918.20 m (1979-05-28), average 916.70 m, 255 days measured1980: lowest 913.20 m (1980-08-13), highest 917.88 m (1980-07-08), average 915.94 m, 246 days measured1981: lowest 912.50 m (1981-09-24), highest 918.63 m (1981-04-17), average 916.59 m, 254 days measured1982: lowest 914.00 m (1982-09-16), highest 918.62 m (1982-06-02), average 916.58 m, 252 days measured1983: lowest 915.46 m (1983-10-27), highest 918.58 m (1983-07-12), average 917.32 m, 254 days measured1984: lowest 914.57 m (1984-08-01), highest 918.24 m (1984-04-09), average 916.37 m, 254 days measured1985: lowest 915.35 m (1985-02-22), highest 918.45 m (1985-05-16), average 916.82 m, 252 days measured1986: lowest 915.23 m (1986-02-20), highest 918.53 m (1986-04-28), average 917.03 m, 260 days measured1987: lowest 915.54 m (1987-02-10), highest 918.49 m (1987-05-12), average 917.30 m, 248 days measured1988: lowest 915.27 m (1988-09-16), highest 918.42 m (1988-05-06), average 916.30 m, 253 days measured1989: lowest 914.78 m (1989-02-21), highest 918.54 m (1989-05-04), average 916.87 m, 254 days measured1990: lowest 913.09 m (1990-10-01), highest 918.57 m (1990-05-13), average 917.29 m, 223 days measured1991: lowest 915.37 m (1991-02-01), highest 918.56 m (1991-05-12), average 917.16 m, 273 days measured1992: lowest 915.46 m (1992-10-18), highest 918.56 m (1992-04-25), average 916.99 m, 277 days measured1993: lowest 915.47 m (1993-10-30), highest 918.51 m (1993-05-10), average 916.90 m, 276 days measured1994: lowest 915.22 m (1994-10-29), highest 918.56 m (1994-05-08), average 917.31 m, 252 days measured1995: lowest 915.22 m (1995-10-31), highest 918.53 m (1995-05-15), average 917.19 m, 252 days measured1996: lowest 915.22 m (1996-03-07), highest 918.89 m (1996-04-09), average 917.44 m, 254 days measured1997: lowest 916.53 m (1997-08-04), highest 918.52 m (1997-05-12), average 917.46 m, 267 days measured1998: lowest 916.71 m (1998-10-27), highest 918.47 m (1998-04-28), average 917.28 m, 254 days measured1999: lowest 916.67 m (1999-11-01), highest 918.54 m (1999-05-15), average 917.43 m, 259 days measured2000: lowest 916.71 m (2000-10-22), highest 918.59 m (2000-04-30), average 917.61 m, 256 days measured2001: lowest 915.90 m (2001-06-03), highest 918.58 m (2001-05-06), average 916.89 m, 261 days measured2002: lowest 916.70 m (2002-02-15), highest 918.60 m (2002-04-24), average 917.55 m, 263 days measured2003: lowest 916.56 m (2003-09-08), highest 918.56 m (2003-05-11), average 917.33 m, 263 days measured2004: lowest 916.71 m (2004-02-26), highest 918.52 m (2004-08-07), average 917.92 m, 252 days measured2005: lowest 916.71 m (2005-11-02), highest 918.57 m (2005-05-09), average 917.67 m, 255 days measured2006: lowest 916.47 m (2006-06-01), highest 918.56 m (2006-05-08), average 917.31 m, 256 days measured2007: lowest 916.70 m (2007-11-05), highest 918.56 m (2007-05-07), average 917.69 m, 260 days measured2008: lowest 916.71 m (2008-10-22), highest 918.49 m (2008-05-03), average 917.54 m, 258 days measured2009: lowest 916.68 m (2009-11-07), highest 918.66 m (2009-05-04), average 917.66 m, 265 days measured2010: lowest 916.73 m (2010-02-21), highest 918.63 m (2010-05-12), average 917.72 m, 268 days measured2011: lowest 916.69 m (2011-09-28), highest 918.57 m (2011-05-23), average 917.49 m, 245 days measured2012: lowest 916.79 m (2012-10-27), highest 918.74 m (2012-05-01), average 918.09 m, 245 days measured2013: lowest 916.73 m (2013-03-01), highest 918.70 m (2013-05-15), average 917.95 m, 245 days measured2014: lowest 916.72 m (2014-10-27), highest 918.67 m (2014-04-24), average 918.11 m, 245 days measured2015: lowest 916.75 m (2015-03-05), highest 918.77 m (2015-05-08), average 917.83 m, 245 days measured2016: lowest 916.96 m (2016-10-31), highest 918.71 m (2016-05-04), average 918.43 m, 245 days measured2017: lowest 916.73 m (2017-02-14), highest 918.61 m (2017-05-15), average 917.39 m, 260 days measured2018: lowest 916.72 m (2018-11-05), highest 918.66 m (2018-05-05), average 917.64 m, 262 days measured2019: lowest 916.70 m (2019-10-31), highest 918.71 m (2019-05-09), average 917.85 m, 255 days measured2020: lowest 916.73 m (2020-02-24), highest 918.71 m (2020-05-15), average 917.80 m, 312 days measured2021: lowest 916.62 m (2021-12-02), highest 918.68 m (2021-05-05), average 917.62 m, 365 days measured2022: lowest 916.68 m (2022-01-02), highest 918.68 m (2022-05-07), average 917.77 m, 340 days measured2023: lowest 916.71 m (2023-11-25), highest 918.66 m (2023-05-16), average 917.33 m, 365 days measured2024: lowest 916.69 m (2024-12-21), highest 918.67 m (2024-05-11), average 917.49 m, 366 days measured2025: lowest 916.35 m (2025-06-06), highest 918.49 m (2025-05-03), average 917.28 m, 365 days measured2026: lowest 917.55 m (2026-10-21), highest 918.05 m (2026-09-26), average 917.84 m, 30 days measured
912914916917919193719591981200320261937: lowest 915.27 m (1937-09-04), highest 917.43 m (1937-05-16), average 916.56 m, 123 days measured1938: lowest 915.35 m (1938-10-31), highest 917.69 m (1938-04-30), average 916.92 m, 65 days measured1939: lowest 915.28 m (1939-02-28), highest 917.85 m (1939-05-03), average 916.85 m, 36 days measured1940: lowest 914.76 m (1940-09-03), highest 917.77 m (1940-06-13), average 915.94 m, 43 days measured1941: lowest 914.74 m (1941-08-24), highest 917.51 m (1941-04-13), average 916.02 m, 38 days measured1942: lowest 915.35 m (1942-02-28), highest 917.75 m (1942-06-23), average 916.78 m, 37 days measured1943: lowest 915.19 m (1943-02-28), highest 917.56 m (1943-06-17), average 916.47 m, 40 days measured1944: lowest 915.32 m (1944-10-31), highest 917.75 m (1944-04-20), average 916.82 m, 58 days measured1945: lowest 915.28 m (1945-07-25), highest 917.75 m (1945-06-13), average 916.47 m, 54 days measured1946: lowest 914.71 m (1946-03-06), highest 917.88 m (1946-04-10), average 916.68 m, 135 days measured1947: lowest 915.35 m (1947-02-28), highest 917.94 m (1947-06-08), average 916.95 m, 174 days measured1948: lowest 914.82 m (1948-09-03), highest 918.10 m (1948-05-24), average 916.45 m, 166 days measured1949: lowest 914.40 m (1949-02-28), highest 917.81 m (1949-04-26), average 916.03 m, 166 days measured1950: lowest 915.34 m (1950-03-14), highest 917.86 m (1950-05-13), average 916.75 m, 177 days measured1951: lowest 915.33 m (1951-10-16), highest 917.91 m (1951-06-10), average 916.76 m, 157 days measured1952: lowest 913.78 m (1952-10-31), highest 917.88 m (1952-04-15), average 915.50 m, 54 days measured1953: lowest 915.34 m (1953-02-21), highest 917.85 m (1953-05-26), average 916.66 m, 256 days measured1954: lowest 915.07 m (1954-03-05), highest 918.03 m (1954-06-02), average 916.41 m, 265 days measured1955: lowest 915.37 m (1955-03-25), highest 917.81 m (1955-07-12), average 916.38 m, 247 days measured1956: lowest 915.37 m (1956-10-05), highest 917.99 m (1956-06-04), average 916.69 m, 247 days measured1957: lowest 915.18 m (1957-08-30), highest 917.84 m (1957-05-14), average 916.31 m, 248 days measured1958: lowest 915.39 m (1958-03-01), highest 917.84 m (1958-04-18), average 916.39 m, 254 days measured1959: lowest 915.12 m (1959-03-01), highest 917.97 m (1959-05-02), average 916.62 m, 247 days measured1960: lowest 915.07 m (1960-10-10), highest 918.05 m (1960-05-03), average 916.47 m, 247 days measured1961: lowest 913.85 m (1961-08-29), highest 917.86 m (1961-05-09), average 916.13 m, 248 days measured1962: lowest 915.44 m (1962-11-02), highest 918.28 m (1962-04-17), average 917.13 m, 202 days measured1963: lowest 914.40 m (1963-09-19), highest 918.30 m (1963-04-07), average 917.20 m, 178 days measured1964: lowest 915.38 m (1964-08-10), highest 918.27 m (1964-04-12), average 916.81 m, 191 days measured1965: lowest 915.48 m (1965-03-29), highest 918.24 m (1965-05-28), average 917.16 m, 208 days measured1966: lowest 915.48 m (1966-02-21), highest 918.26 m (1966-04-25), average 917.40 m, 204 days measured1967: lowest 914.96 m (1967-08-28), highest 917.97 m (1967-06-07), average 916.41 m, 211 days measured1968: lowest 915.46 m (1968-10-27), highest 918.18 m (1968-03-26), average 917.13 m, 212 days measured1969: lowest 915.47 m (1969-10-29), highest 918.19 m (1969-05-03), average 916.85 m, 246 days measured1970: lowest 914.89 m (1970-09-03), highest 918.30 m (1970-06-17), average 917.08 m, 188 days measured1971: lowest 915.47 m (1971-10-31), highest 918.35 m (1971-05-20), average 916.64 m, 231 days measured1972: lowest 915.30 m (1972-03-13), highest 918.48 m (1972-04-26), average 916.73 m, 247 days measured1973: lowest 915.03 m (1973-08-13), highest 918.33 m (1973-04-26), average 917.13 m, 186 days measured1974: lowest 915.46 m (1974-10-15), highest 918.32 m (1974-04-28), average 916.71 m, 249 days measured1975: lowest 915.48 m (1975-03-20), highest 918.41 m (1975-06-23), average 916.87 m, 250 days measured1976: lowest 915.43 m (1976-09-21), highest 918.34 m (1976-05-15), average 916.85 m, 256 days measured1977: lowest 914.41 m (1977-08-20), highest 918.16 m (1977-07-01), average 916.48 m, 190 days measured1978: lowest 915.49 m (1978-03-01), highest 918.44 m (1978-05-12), average 917.22 m, 252 days measured1979: lowest 915.20 m (1979-03-10), highest 918.20 m (1979-05-28), average 916.70 m, 255 days measured1980: lowest 913.20 m (1980-08-13), highest 917.88 m (1980-07-08), average 915.94 m, 246 days measured1981: lowest 912.50 m (1981-09-24), highest 918.63 m (1981-04-17), average 916.59 m, 254 days measured1982: lowest 914.00 m (1982-09-16), highest 918.62 m (1982-06-02), average 916.58 m, 252 days measured1983: lowest 915.46 m (1983-10-27), highest 918.58 m (1983-07-12), average 917.32 m, 254 days measured1984: lowest 914.57 m (1984-08-01), highest 918.24 m (1984-04-09), average 916.37 m, 254 days measured1985: lowest 915.35 m (1985-02-22), highest 918.45 m (1985-05-16), average 916.82 m, 252 days measured1986: lowest 915.23 m (1986-02-20), highest 918.53 m (1986-04-28), average 917.03 m, 260 days measured1987: lowest 915.54 m (1987-02-10), highest 918.49 m (1987-05-12), average 917.30 m, 248 days measured1988: lowest 915.27 m (1988-09-16), highest 918.42 m (1988-05-06), average 916.30 m, 253 days measured1989: lowest 914.78 m (1989-02-21), highest 918.54 m (1989-05-04), average 916.87 m, 254 days measured1990: lowest 913.09 m (1990-10-01), highest 918.57 m (1990-05-13), average 917.29 m, 223 days measured1991: lowest 915.37 m (1991-02-01), highest 918.56 m (1991-05-12), average 917.16 m, 273 days measured1992: lowest 915.46 m (1992-10-18), highest 918.56 m (1992-04-25), average 916.99 m, 277 days measured1993: lowest 915.47 m (1993-10-30), highest 918.51 m (1993-05-10), average 916.90 m, 276 days measured1994: lowest 915.22 m (1994-10-29), highest 918.56 m (1994-05-08), average 917.31 m, 252 days measured1995: lowest 915.22 m (1995-10-31), highest 918.53 m (1995-05-15), average 917.19 m, 252 days measured1996: lowest 915.22 m (1996-03-07), highest 918.89 m (1996-04-09), average 917.44 m, 254 days measured1997: lowest 916.53 m (1997-08-04), highest 918.52 m (1997-05-12), average 917.46 m, 267 days measured1998: lowest 916.71 m (1998-10-27), highest 918.47 m (1998-04-28), average 917.28 m, 254 days measured1999: lowest 916.67 m (1999-11-01), highest 918.54 m (1999-05-15), average 917.43 m, 259 days measured2000: lowest 916.71 m (2000-10-22), highest 918.59 m (2000-04-30), average 917.61 m, 256 days measured2001: lowest 915.90 m (2001-06-03), highest 918.58 m (2001-05-06), average 916.89 m, 261 days measured2002: lowest 916.70 m (2002-02-15), highest 918.60 m (2002-04-24), average 917.55 m, 263 days measured2003: lowest 916.56 m (2003-09-08), highest 918.56 m (2003-05-11), average 917.33 m, 263 days measured2004: lowest 916.71 m (2004-02-26), highest 918.52 m (2004-08-07), average 917.92 m, 252 days measured2005: lowest 916.71 m (2005-11-02), highest 918.57 m (2005-05-09), average 917.67 m, 255 days measured2006: lowest 916.47 m (2006-06-01), highest 918.56 m (2006-05-08), average 917.31 m, 256 days measured2007: lowest 916.70 m (2007-11-05), highest 918.56 m (2007-05-07), average 917.69 m, 260 days measured2008: lowest 916.71 m (2008-10-22), highest 918.49 m (2008-05-03), average 917.54 m, 258 days measured2009: lowest 916.68 m (2009-11-07), highest 918.66 m (2009-05-04), average 917.66 m, 265 days measured2010: lowest 916.73 m (2010-02-21), highest 918.63 m (2010-05-12), average 917.72 m, 268 days measured2011: lowest 916.69 m (2011-09-28), highest 918.57 m (2011-05-23), average 917.49 m, 245 days measured2012: lowest 916.79 m (2012-10-27), highest 918.74 m (2012-05-01), average 918.09 m, 245 days measured2013: lowest 916.73 m (2013-03-01), highest 918.70 m (2013-05-15), average 917.95 m, 245 days measured2014: lowest 916.72 m (2014-10-27), highest 918.67 m (2014-04-24), average 918.11 m, 245 days measured2015: lowest 916.75 m (2015-03-05), highest 918.77 m (2015-05-08), average 917.83 m, 245 days measured2016: lowest 916.96 m (2016-10-31), highest 918.71 m (2016-05-04), average 918.43 m, 245 days measured2017: lowest 916.73 m (2017-02-14), highest 918.61 m (2017-05-15), average 917.39 m, 260 days measured2018: lowest 916.72 m (2018-11-05), highest 918.66 m (2018-05-05), average 917.64 m, 262 days measured2019: lowest 916.70 m (2019-10-31), highest 918.71 m (2019-05-09), average 917.85 m, 255 days measured2020: lowest 916.73 m (2020-02-24), highest 918.71 m (2020-05-15), average 917.80 m, 312 days measured2021: lowest 916.62 m (2021-12-02), highest 918.68 m (2021-05-05), average 917.62 m, 365 days measured2022: lowest 916.68 m (2022-01-02), highest 918.68 m (2022-05-07), average 917.77 m, 340 days measured2023: lowest 916.71 m (2023-11-25), highest 918.66 m (2023-05-16), average 917.33 m, 365 days measured2024: lowest 916.69 m (2024-12-21), highest 918.67 m (2024-05-11), average 917.49 m, 366 days measured2025: lowest 916.35 m (2025-06-06), highest 918.49 m (2025-05-03), average 917.28 m, 365 days measured2026: lowest 917.55 m (2026-10-21), highest 918.05 m (2026-09-26), average 917.84 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.

  • 2025916.353 m on Jun 6
  • 2021916.617 m on Dec 2
  • 2022916.681 m on Jan 2
  • 2024916.694 m on Dec 21
  • 2023916.705 m on Nov 25

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (30 days)917.841917.554Oct 21918.050Sep 26
2025917.279916.353Jun 6918.485May 3
2024917.494916.694Dec 21918.669May 11
2023917.330916.705Nov 25918.660May 16
2022917.774916.681Jan 2918.683May 7
2021917.615916.617Dec 2918.677May 5
2020 (312 days)917.803916.727Feb 24918.709May 15
2019 (255 days)917.847916.703Oct 31918.705May 9
2018 (262 days)917.639916.719Nov 5918.658May 5
2017 (260 days)917.387916.730Feb 14918.609May 15
2016 (245 days)918.431916.959Oct 31918.712May 4
2015 (245 days)917.828916.749Mar 5918.771May 8
2014 (245 days)918.106916.723Oct 27918.670Apr 24
2013 (245 days)917.954916.728Mar 1918.701May 15
2012 (245 days)918.093916.794Oct 27918.740May 1
2011 (245 days)917.492916.686Sep 28918.566May 23
2010 (268 days)917.722916.725Feb 21918.632May 12
2009 (265 days)917.655916.684Nov 7918.658May 4
2008 (258 days)917.544916.709Oct 22918.491May 3
2007 (260 days)917.687916.695Nov 5918.562May 7
2006 (256 days)917.310916.473Jun 1918.562May 8
2005 (255 days)917.668916.707Nov 2918.568May 9
2004 (252 days)917.915916.710Feb 26918.524Aug 7
2003 (263 days)917.327916.561Sep 8918.555May 11
2002 (263 days)917.554916.695Feb 15918.604Apr 24
2001 (261 days)916.895915.902Jun 3918.584May 6
2000 (256 days)917.614916.705Oct 22918.585Apr 30
1999 (259 days)917.430916.671Nov 1918.535May 15
1998 (254 days)917.280916.711Oct 27918.469Apr 28
1997 (267 days)917.458916.527Aug 4918.518May 12
1996 (254 days)917.443915.222Mar 7918.887Apr 9
1995 (252 days)917.190915.224Oct 31918.529May 15
1994 (252 days)917.312915.223Oct 29918.559May 8
1993 (276 days)916.903915.471Oct 30918.513May 10
1992 (277 days)916.985915.460Oct 18918.563Apr 25
1991 (273 days)917.159915.374Feb 1918.562May 12
1990 (223 days)917.291913.090Oct 1918.573May 13
1989 (254 days)916.866914.783Feb 21918.543May 4
1988 (253 days)916.303915.274Sep 16918.420May 6
1987 (248 days)917.296915.542Feb 10918.490May 12
1986 (260 days)917.030915.229Feb 20918.531Apr 28
1985 (252 days)916.819915.347Feb 22918.454May 16
1984 (254 days)916.369914.573Aug 1918.241Apr 9
1983 (254 days)917.316915.461Oct 27918.579Jul 12
1982 (252 days)916.579914.000Sep 16918.622Jun 2
1981 (254 days)916.594912.500Sep 24918.625Apr 17
1980 (246 days)915.940913.204Aug 13917.875Jul 8
1979 (255 days)916.699915.196Mar 10918.199May 28
1978 (252 days)917.224915.485Mar 1918.442May 12
1977 (190 days)916.482914.412Aug 20918.155Jul 1
1976 (256 days)916.852915.430Sep 21918.335May 15
1975 (250 days)916.867915.476Mar 20918.405Jun 23
1974 (249 days)916.711915.461Oct 15918.320Apr 28
1973 (186 days)917.128915.034Aug 13918.332Apr 26
1972 (247 days)916.726915.302Mar 13918.475Apr 26
1971 (231 days)916.636915.470Oct 31918.353May 20
1970 (188 days)917.081914.888Sep 3918.304Jun 17
1969 (246 days)916.852915.467Oct 29918.192May 3
1968 (212 days)917.133915.455Oct 27918.183Mar 26
1967 (211 days)916.412914.961Aug 28917.972Jun 7
1966 (204 days)917.403915.482Feb 21918.256Apr 25
1965 (208 days)917.163915.476Mar 29918.240May 28
1964 (191 days)916.811915.375Aug 10918.265Apr 12
1963 (178 days)917.200914.400Sep 19918.301Apr 7
1962 (202 days)917.131915.436Nov 2918.283Apr 17
1961 (248 days)916.129913.851Aug 29917.863May 9
1960 (247 days)916.465915.074Oct 10918.048May 3
1959 (247 days)916.625915.119Mar 1917.966May 2
1958 (254 days)916.388915.391Mar 1917.844Apr 18
1957 (248 days)916.306915.177Aug 30917.835May 14
1956 (247 days)916.691915.366Oct 5917.991Jun 4
1955 (247 days)916.385915.369Mar 25917.811Jul 12
1954 (265 days)916.408915.071Mar 5918.027Jun 2
1953 (256 days)916.661915.339Feb 21917.847May 26
1952 (54 days)915.500913.784Oct 31917.875Apr 15
1951 (157 days)916.756915.330Oct 16917.905Jun 10
1950 (177 days)916.750915.342Mar 14917.863May 13
1949 (166 days)916.033914.400Feb 28917.811Apr 26
1948 (166 days)916.454914.821Sep 3918.103May 24
1947 (174 days)916.948915.345Feb 28917.936Jun 8
1946 (135 days)916.676914.705Mar 6917.875Apr 10
1945 (54 days)916.475915.275Jul 25917.747Jun 13
1944 (58 days)916.824915.320Oct 31917.750Apr 20
1943 (40 days)916.471915.192Feb 28917.555Jun 17
1942 (37 days)916.780915.345Feb 28917.753Jun 23
1941 (38 days)916.017914.735Aug 24917.509Apr 13
1940 (43 days)915.935914.757Sep 3917.768Jun 13
1939 (36 days)916.849915.284Feb 28917.847May 3
1938 (65 days)916.924915.345Oct 31917.692Apr 30
1937 (123 days)916.561915.269Sep 4917.430May 16

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

Monthly averages

MonthAverageLowestHighest
January916.815916.681917.507
February916.108914.400916.975
March916.387914.400918.677
April917.567914.491918.887
May917.968915.398918.771
June917.644915.711918.640
July917.666914.606918.588
August916.864913.140918.524
September916.550912.500918.655
October916.347913.090918.643
November916.952914.949918.310
December917.003915.485918.265

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Daily levels as CSV (20,099 rows; credit the original agencies listed below)