Country: Canada
United StatesCanadaUnited Kingdom

Okanagan Lake water level history

Daily records since 1943 · Level today: 1.116 m

Highest on record
3.009 m
Jun 7, 2017
Lowest on record
0.957 m
Apr 16, 1974
Today
1.116 m
Oct 23, 2026
Years of data
83
since 1943

In short

Across 81 complete years, 1962 had the lowest average level (1.256 m) and 1948 the highest (1.911 m).

On average the lake is lowest in March (1.332 m) and highest in June (2.070 m).

Okanagan Lake level, all years

Loading chart…

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

Each year's lowest and highest level

0.81.42.02.63.11943195319631973198319932003201320261943: lowest 1.22 m (1943-12-21), highest 1.63 m (1943-07-20), average 1.38 m, 165 days measured1944: lowest 1.18 m (1944-02-12), highest 1.78 m (1944-06-24), average 1.43 m, 358 days measured1945: lowest 1.14 m (1945-04-24), highest 2.15 m (1945-06-22), average 1.56 m, 354 days measured1946: lowest 1.13 m (1946-04-15), highest 2.54 m (1946-06-29), average 1.70 m, 365 days measured1947: lowest 1.23 m (1947-03-08), highest 1.80 m (1947-07-04), average 1.45 m, 363 days measured1948: lowest 1.14 m (1948-04-17), highest 2.83 m (1948-06-26), average 1.91 m, 366 days measured1949: lowest 1.26 m (1949-04-15), highest 2.13 m (1949-06-07), average 1.60 m, 288 days measured1950: lowest 1.24 m (1950-04-25), highest 2.18 m (1950-07-01), average 1.66 m, 341 days measured1951: lowest 1.29 m (1951-03-28), highest 2.50 m (1951-06-18), average 1.79 m, 364 days measured1952: lowest 1.20 m (1952-04-03), highest 2.21 m (1952-07-02), average 1.62 m, 365 days measured1953: lowest 1.40 m (1953-01-01), highest 2.24 m (1953-07-05), average 1.72 m, 353 days measured1954: lowest 1.22 m (1954-04-01), highest 2.31 m (1954-07-07), average 1.72 m, 363 days measured1955: lowest 1.27 m (1955-05-02), highest 2.13 m (1955-07-17), average 1.59 m, 365 days measured1956: lowest 1.23 m (1956-04-11), highest 2.34 m (1956-06-22), average 1.67 m, 334 days measured1957: lowest 1.24 m (1957-03-13), highest 2.19 m (1957-06-20), average 1.60 m, 365 days measured1958: lowest 1.27 m (1958-03-17), highest 2.06 m (1958-06-16), average 1.51 m, 365 days measured1959: lowest 1.05 m (1959-04-18), highest 2.13 m (1959-06-28), average 1.55 m, 365 days measured1960: lowest 1.15 m (1960-03-19), highest 2.09 m (1960-06-30), average 1.52 m, 358 days measured1961: lowest 1.13 m (1961-03-10), highest 2.04 m (1961-06-17), average 1.40 m, 365 days measured1962: lowest 0.99 m (1962-04-16), highest 1.62 m (1962-06-28), average 1.26 m, 357 days measured1963: lowest 1.05 m (1963-03-18), highest 1.66 m (1963-07-17), average 1.34 m, 359 days measured1964: lowest 1.15 m (1964-04-30), highest 2.04 m (1964-07-06), average 1.58 m, 364 days measured1965: lowest 1.43 m (1965-12-22), highest 2.09 m (1965-06-18), average 1.66 m, 359 days measured1966: lowest 1.33 m (1966-11-12), highest 1.77 m (1966-07-08), average 1.47 m, 365 days measured1967: lowest 1.06 m (1967-05-05), highest 1.83 m (1967-06-26), average 1.35 m, 363 days measured1968: lowest 1.16 m (1968-02-17), highest 2.19 m (1968-07-03), average 1.64 m, 361 days measured1969: lowest 1.27 m (1969-04-11), highest 2.15 m (1969-06-09), average 1.65 m, 364 days measured1970: lowest 1.15 m (1970-12-31), highest 1.73 m (1970-06-22), average 1.41 m, 365 days measured1971: lowest 1.07 m (1971-04-24), highest 2.16 m (1971-07-12), average 1.56 m, 365 days measured1972: lowest 1.02 m (1972-04-23), highest 2.51 m (1972-06-29), average 1.64 m, 366 days measured1973: lowest 1.33 m (1973-11-07), highest 1.83 m (1973-06-23), average 1.51 m, 365 days measured1974: lowest 0.96 m (1974-04-16), highest 2.32 m (1974-06-25), average 1.57 m, 365 days measured1975: lowest 0.96 m (1975-04-21), highest 2.17 m (1975-07-14), average 1.60 m, 365 days measured1976: lowest 1.20 m (1976-04-06), highest 2.23 m (1976-07-03), average 1.72 m, 366 days measured1977: lowest 1.46 m (1977-11-23), highest 2.10 m (1977-06-20), average 1.69 m, 365 days measured1978: lowest 1.26 m (1978-03-21), highest 2.15 m (1978-07-06), average 1.72 m, 365 days measured1979: lowest 1.42 m (1979-12-28), highest 2.04 m (1979-06-12), average 1.64 m, 365 days measured1980: lowest 1.36 m (1980-01-31), highest 2.18 m (1980-06-19), average 1.70 m, 366 days measured1981: lowest 1.50 m (1981-02-10), highest 2.27 m (1981-06-15), average 1.75 m, 365 days measured1982: lowest 1.10 m (1982-04-28), highest 2.33 m (1982-07-26), average 1.65 m, 365 days measured1983: lowest 1.18 m (1983-04-20), highest 2.21 m (1983-06-25), average 1.65 m, 365 days measured1984: lowest 1.31 m (1984-03-12), highest 2.30 m (1984-07-04), average 1.63 m, 366 days measured1985: lowest 1.32 m (1985-03-18), highest 2.10 m (1985-06-20), average 1.60 m, 365 days measured1986: lowest 1.37 m (1986-03-09), highest 2.16 m (1986-07-02), average 1.65 m, 365 days measured1987: lowest 1.32 m (1987-12-28), highest 2.08 m (1987-06-12), average 1.63 m, 365 days measured1988: lowest 1.23 m (1988-04-11), highest 1.85 m (1988-07-04), average 1.50 m, 366 days measured1989: lowest 1.39 m (1989-02-14), highest 2.20 m (1989-06-25), average 1.70 m, 365 days measured1990: lowest 1.42 m (1990-03-28), highest 2.63 m (1990-06-26), average 1.76 m, 365 days measured1991: lowest 1.14 m (1991-03-31), highest 2.19 m (1991-07-04), average 1.61 m, 365 days measured1992: lowest 1.20 m (1992-12-31), highest 1.72 m (1992-06-16), average 1.46 m, 366 days measured1993: lowest 1.15 m (1993-03-10), highest 2.23 m (1993-07-31), average 1.64 m, 365 days measured1994: lowest 1.42 m (1994-04-02), highest 2.18 m (1994-06-24), average 1.71 m, 365 days measured1995: lowest 1.29 m (1995-04-04), highest 2.11 m (1995-06-27), average 1.65 m, 365 days measured1996: lowest 1.27 m (1996-04-08), highest 2.38 m (1996-06-17), average 1.76 m, 366 days measured1997: lowest 1.21 m (1997-04-16), highest 2.60 m (1997-07-13), average 1.81 m, 365 days measured1998: lowest 1.40 m (1998-03-20), highest 2.20 m (1998-06-13), average 1.68 m, 365 days measured1999: lowest 1.11 m (1999-04-17), highest 2.18 m (1999-07-09), average 1.56 m, 365 days measured2000: lowest 1.39 m (2000-02-25), highest 2.19 m (2000-06-22), average 1.66 m, 366 days measured2001: lowest 1.40 m (2001-03-11), highest 1.97 m (2001-06-30), average 1.58 m, 365 days measured2002: lowest 1.32 m (2002-04-11), highest 2.21 m (2002-06-20), average 1.61 m, 365 days measured2003: lowest 1.07 m (2003-12-30), highest 1.83 m (2003-06-26), average 1.39 m, 365 days measured2004: lowest 1.04 m (2004-01-22), highest 2.00 m (2004-06-27), average 1.50 m, 366 days measured2005: lowest 1.36 m (2005-03-09), highest 2.26 m (2005-06-28), average 1.67 m, 365 days measured2006: lowest 1.31 m (2006-03-28), highest 2.26 m (2006-06-17), average 1.64 m, 365 days measured2007: lowest 1.36 m (2007-03-14), highest 1.99 m (2007-07-04), average 1.59 m, 365 days measured2008: lowest 1.37 m (2008-04-27), highest 2.22 m (2008-06-24), average 1.65 m, 366 days measured2009: lowest 1.21 m (2009-12-31), highest 1.80 m (2009-06-24), average 1.46 m, 365 days measured2010: lowest 1.21 m (2010-01-01), highest 2.23 m (2010-06-24), average 1.61 m, 365 days measured2011: lowest 1.39 m (2011-12-27), highest 2.36 m (2011-06-23), average 1.66 m, 365 days measured2012: lowest 1.34 m (2012-02-08), highest 2.40 m (2012-07-05), average 1.68 m, 366 days measured2013: lowest 1.30 m (2013-04-01), highest 2.33 m (2013-06-30), average 1.71 m, 365 days measured2014: lowest 1.34 m (2014-04-09), highest 2.14 m (2014-07-03), average 1.68 m, 365 days measured2015: lowest 1.40 m (2015-12-04), highest 2.15 m (2015-06-08), average 1.71 m, 365 days measured2016: lowest 1.41 m (2016-01-03), highest 2.26 m (2016-06-26), average 1.78 m, 366 days measured2017: lowest 1.44 m (2017-12-26), highest 3.01 m (2017-06-07), average 1.85 m, 365 days measured2018: lowest 1.19 m (2018-04-23), highest 2.45 m (2018-05-29), average 1.68 m, 365 days measured2019: lowest 1.43 m (2019-03-22), highest 1.94 m (2019-06-12), average 1.66 m, 365 days measured2020: lowest 1.18 m (2020-04-18), highest 2.52 m (2020-06-25), average 1.71 m, 366 days measured2021: lowest 1.24 m (2021-10-21), highest 1.83 m (2021-06-17), average 1.45 m, 365 days measured2022: lowest 1.26 m (2022-01-05), highest 2.39 m (2022-06-26), average 1.61 m, 365 days measured2023: lowest 1.17 m (2023-04-06), highest 2.09 m (2023-05-31), average 1.54 m, 365 days measured2024: lowest 1.33 m (2024-01-16), highest 2.04 m (2024-07-04), average 1.60 m, 366 days measured2025: lowest 1.33 m (2025-11-14), highest 2.16 m (2025-06-01), average 1.60 m, 365 days measured2026: lowest 1.12 m (2026-10-21), highest 1.23 m (2026-09-22), average 1.18 m, 30 days measured
0.81.42.02.63.1194319641985200620261943: lowest 1.22 m (1943-12-21), highest 1.63 m (1943-07-20), average 1.38 m, 165 days measured1944: lowest 1.18 m (1944-02-12), highest 1.78 m (1944-06-24), average 1.43 m, 358 days measured1945: lowest 1.14 m (1945-04-24), highest 2.15 m (1945-06-22), average 1.56 m, 354 days measured1946: lowest 1.13 m (1946-04-15), highest 2.54 m (1946-06-29), average 1.70 m, 365 days measured1947: lowest 1.23 m (1947-03-08), highest 1.80 m (1947-07-04), average 1.45 m, 363 days measured1948: lowest 1.14 m (1948-04-17), highest 2.83 m (1948-06-26), average 1.91 m, 366 days measured1949: lowest 1.26 m (1949-04-15), highest 2.13 m (1949-06-07), average 1.60 m, 288 days measured1950: lowest 1.24 m (1950-04-25), highest 2.18 m (1950-07-01), average 1.66 m, 341 days measured1951: lowest 1.29 m (1951-03-28), highest 2.50 m (1951-06-18), average 1.79 m, 364 days measured1952: lowest 1.20 m (1952-04-03), highest 2.21 m (1952-07-02), average 1.62 m, 365 days measured1953: lowest 1.40 m (1953-01-01), highest 2.24 m (1953-07-05), average 1.72 m, 353 days measured1954: lowest 1.22 m (1954-04-01), highest 2.31 m (1954-07-07), average 1.72 m, 363 days measured1955: lowest 1.27 m (1955-05-02), highest 2.13 m (1955-07-17), average 1.59 m, 365 days measured1956: lowest 1.23 m (1956-04-11), highest 2.34 m (1956-06-22), average 1.67 m, 334 days measured1957: lowest 1.24 m (1957-03-13), highest 2.19 m (1957-06-20), average 1.60 m, 365 days measured1958: lowest 1.27 m (1958-03-17), highest 2.06 m (1958-06-16), average 1.51 m, 365 days measured1959: lowest 1.05 m (1959-04-18), highest 2.13 m (1959-06-28), average 1.55 m, 365 days measured1960: lowest 1.15 m (1960-03-19), highest 2.09 m (1960-06-30), average 1.52 m, 358 days measured1961: lowest 1.13 m (1961-03-10), highest 2.04 m (1961-06-17), average 1.40 m, 365 days measured1962: lowest 0.99 m (1962-04-16), highest 1.62 m (1962-06-28), average 1.26 m, 357 days measured1963: lowest 1.05 m (1963-03-18), highest 1.66 m (1963-07-17), average 1.34 m, 359 days measured1964: lowest 1.15 m (1964-04-30), highest 2.04 m (1964-07-06), average 1.58 m, 364 days measured1965: lowest 1.43 m (1965-12-22), highest 2.09 m (1965-06-18), average 1.66 m, 359 days measured1966: lowest 1.33 m (1966-11-12), highest 1.77 m (1966-07-08), average 1.47 m, 365 days measured1967: lowest 1.06 m (1967-05-05), highest 1.83 m (1967-06-26), average 1.35 m, 363 days measured1968: lowest 1.16 m (1968-02-17), highest 2.19 m (1968-07-03), average 1.64 m, 361 days measured1969: lowest 1.27 m (1969-04-11), highest 2.15 m (1969-06-09), average 1.65 m, 364 days measured1970: lowest 1.15 m (1970-12-31), highest 1.73 m (1970-06-22), average 1.41 m, 365 days measured1971: lowest 1.07 m (1971-04-24), highest 2.16 m (1971-07-12), average 1.56 m, 365 days measured1972: lowest 1.02 m (1972-04-23), highest 2.51 m (1972-06-29), average 1.64 m, 366 days measured1973: lowest 1.33 m (1973-11-07), highest 1.83 m (1973-06-23), average 1.51 m, 365 days measured1974: lowest 0.96 m (1974-04-16), highest 2.32 m (1974-06-25), average 1.57 m, 365 days measured1975: lowest 0.96 m (1975-04-21), highest 2.17 m (1975-07-14), average 1.60 m, 365 days measured1976: lowest 1.20 m (1976-04-06), highest 2.23 m (1976-07-03), average 1.72 m, 366 days measured1977: lowest 1.46 m (1977-11-23), highest 2.10 m (1977-06-20), average 1.69 m, 365 days measured1978: lowest 1.26 m (1978-03-21), highest 2.15 m (1978-07-06), average 1.72 m, 365 days measured1979: lowest 1.42 m (1979-12-28), highest 2.04 m (1979-06-12), average 1.64 m, 365 days measured1980: lowest 1.36 m (1980-01-31), highest 2.18 m (1980-06-19), average 1.70 m, 366 days measured1981: lowest 1.50 m (1981-02-10), highest 2.27 m (1981-06-15), average 1.75 m, 365 days measured1982: lowest 1.10 m (1982-04-28), highest 2.33 m (1982-07-26), average 1.65 m, 365 days measured1983: lowest 1.18 m (1983-04-20), highest 2.21 m (1983-06-25), average 1.65 m, 365 days measured1984: lowest 1.31 m (1984-03-12), highest 2.30 m (1984-07-04), average 1.63 m, 366 days measured1985: lowest 1.32 m (1985-03-18), highest 2.10 m (1985-06-20), average 1.60 m, 365 days measured1986: lowest 1.37 m (1986-03-09), highest 2.16 m (1986-07-02), average 1.65 m, 365 days measured1987: lowest 1.32 m (1987-12-28), highest 2.08 m (1987-06-12), average 1.63 m, 365 days measured1988: lowest 1.23 m (1988-04-11), highest 1.85 m (1988-07-04), average 1.50 m, 366 days measured1989: lowest 1.39 m (1989-02-14), highest 2.20 m (1989-06-25), average 1.70 m, 365 days measured1990: lowest 1.42 m (1990-03-28), highest 2.63 m (1990-06-26), average 1.76 m, 365 days measured1991: lowest 1.14 m (1991-03-31), highest 2.19 m (1991-07-04), average 1.61 m, 365 days measured1992: lowest 1.20 m (1992-12-31), highest 1.72 m (1992-06-16), average 1.46 m, 366 days measured1993: lowest 1.15 m (1993-03-10), highest 2.23 m (1993-07-31), average 1.64 m, 365 days measured1994: lowest 1.42 m (1994-04-02), highest 2.18 m (1994-06-24), average 1.71 m, 365 days measured1995: lowest 1.29 m (1995-04-04), highest 2.11 m (1995-06-27), average 1.65 m, 365 days measured1996: lowest 1.27 m (1996-04-08), highest 2.38 m (1996-06-17), average 1.76 m, 366 days measured1997: lowest 1.21 m (1997-04-16), highest 2.60 m (1997-07-13), average 1.81 m, 365 days measured1998: lowest 1.40 m (1998-03-20), highest 2.20 m (1998-06-13), average 1.68 m, 365 days measured1999: lowest 1.11 m (1999-04-17), highest 2.18 m (1999-07-09), average 1.56 m, 365 days measured2000: lowest 1.39 m (2000-02-25), highest 2.19 m (2000-06-22), average 1.66 m, 366 days measured2001: lowest 1.40 m (2001-03-11), highest 1.97 m (2001-06-30), average 1.58 m, 365 days measured2002: lowest 1.32 m (2002-04-11), highest 2.21 m (2002-06-20), average 1.61 m, 365 days measured2003: lowest 1.07 m (2003-12-30), highest 1.83 m (2003-06-26), average 1.39 m, 365 days measured2004: lowest 1.04 m (2004-01-22), highest 2.00 m (2004-06-27), average 1.50 m, 366 days measured2005: lowest 1.36 m (2005-03-09), highest 2.26 m (2005-06-28), average 1.67 m, 365 days measured2006: lowest 1.31 m (2006-03-28), highest 2.26 m (2006-06-17), average 1.64 m, 365 days measured2007: lowest 1.36 m (2007-03-14), highest 1.99 m (2007-07-04), average 1.59 m, 365 days measured2008: lowest 1.37 m (2008-04-27), highest 2.22 m (2008-06-24), average 1.65 m, 366 days measured2009: lowest 1.21 m (2009-12-31), highest 1.80 m (2009-06-24), average 1.46 m, 365 days measured2010: lowest 1.21 m (2010-01-01), highest 2.23 m (2010-06-24), average 1.61 m, 365 days measured2011: lowest 1.39 m (2011-12-27), highest 2.36 m (2011-06-23), average 1.66 m, 365 days measured2012: lowest 1.34 m (2012-02-08), highest 2.40 m (2012-07-05), average 1.68 m, 366 days measured2013: lowest 1.30 m (2013-04-01), highest 2.33 m (2013-06-30), average 1.71 m, 365 days measured2014: lowest 1.34 m (2014-04-09), highest 2.14 m (2014-07-03), average 1.68 m, 365 days measured2015: lowest 1.40 m (2015-12-04), highest 2.15 m (2015-06-08), average 1.71 m, 365 days measured2016: lowest 1.41 m (2016-01-03), highest 2.26 m (2016-06-26), average 1.78 m, 366 days measured2017: lowest 1.44 m (2017-12-26), highest 3.01 m (2017-06-07), average 1.85 m, 365 days measured2018: lowest 1.19 m (2018-04-23), highest 2.45 m (2018-05-29), average 1.68 m, 365 days measured2019: lowest 1.43 m (2019-03-22), highest 1.94 m (2019-06-12), average 1.66 m, 365 days measured2020: lowest 1.18 m (2020-04-18), highest 2.52 m (2020-06-25), average 1.71 m, 366 days measured2021: lowest 1.24 m (2021-10-21), highest 1.83 m (2021-06-17), average 1.45 m, 365 days measured2022: lowest 1.26 m (2022-01-05), highest 2.39 m (2022-06-26), average 1.61 m, 365 days measured2023: lowest 1.17 m (2023-04-06), highest 2.09 m (2023-05-31), average 1.54 m, 365 days measured2024: lowest 1.33 m (2024-01-16), highest 2.04 m (2024-07-04), average 1.60 m, 366 days measured2025: lowest 1.33 m (2025-11-14), highest 2.16 m (2025-06-01), average 1.60 m, 365 days measured2026: lowest 1.12 m (2026-10-21), highest 1.23 m (2026-09-22), average 1.18 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.

  • 19740.957 m on Apr 16
  • 19750.963 m on Apr 21
  • 19620.994 m on Apr 16
  • 19721.021 m on Apr 23
  • 20041.038 m on Jan 22

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (30 days)1.1751.119Oct 211.226Sep 22
20251.6021.329Nov 142.157Jun 1
20241.5991.334Jan 162.041Jul 4
20231.5441.172Apr 62.087May 31
20221.6121.255Jan 52.390Jun 26
20211.4531.241Oct 211.827Jun 17
20201.7101.175Apr 182.520Jun 25
20191.6611.432Mar 221.936Jun 12
20181.6811.193Apr 232.449May 29
20171.8541.437Dec 263.009Jun 7
20161.7811.412Jan 32.259Jun 26
20151.7091.403Dec 42.150Jun 8
20141.6801.339Apr 92.141Jul 3
20131.7071.303Apr 12.329Jun 30
20121.6831.342Feb 82.402Jul 5
20111.6611.394Dec 272.355Jun 23
20101.6071.212Jan 12.229Jun 24
20091.4641.211Dec 311.803Jun 24
20081.6511.367Apr 272.221Jun 24
20071.5861.357Mar 141.994Jul 4
20061.6401.313Mar 282.258Jun 17
20051.6661.363Mar 92.264Jun 28
20041.4991.038Jan 221.996Jun 27
20031.3901.066Dec 301.828Jun 26
20021.6131.319Apr 112.207Jun 20
20011.5831.402Mar 111.970Jun 30
20001.6561.388Feb 252.186Jun 22
19991.5611.108Apr 172.183Jul 9
19981.6851.401Mar 202.200Jun 13
19971.8061.208Apr 162.604Jul 13
19961.7631.271Apr 82.378Jun 17
19951.6471.294Apr 42.110Jun 27
19941.7061.418Apr 22.181Jun 24
19931.6411.154Mar 102.227Jul 31
19921.4571.203Dec 311.721Jun 16
19911.6111.138Mar 312.186Jul 4
19901.7591.416Mar 282.633Jun 26
19891.6961.389Feb 142.197Jun 25
19881.5011.231Apr 111.852Jul 4
19871.6351.322Dec 282.078Jun 12
19861.6511.368Mar 92.162Jul 2
19851.6051.316Mar 182.099Jun 20
19841.6311.306Mar 122.301Jul 4
19831.6501.180Apr 202.206Jun 25
19821.6451.101Apr 282.327Jul 26
19811.7521.497Feb 102.268Jun 15
19801.6951.365Jan 312.185Jun 19
19791.6411.422Dec 282.040Jun 12
19781.7221.259Mar 212.146Jul 6
19771.6921.463Nov 232.103Jun 20
19761.7231.201Apr 62.225Jul 3
19751.6040.963Apr 212.173Jul 14
19741.5700.957Apr 162.320Jun 25
19731.5091.326Nov 71.829Jun 23
19721.6431.021Apr 232.509Jun 29
19711.5631.067Apr 242.161Jul 12
19701.4101.146Dec 311.731Jun 22
19691.6531.271Apr 112.155Jun 9
19681.6371.164Feb 172.195Jul 3
19671.3531.058May 51.829Jun 26
19661.4741.326Nov 121.768Jul 8
19651.6631.426Dec 222.085Jun 18
19641.5821.152Apr 302.036Jul 6
19631.3391.045Mar 181.655Jul 17
19621.2560.994Apr 161.615Jun 28
19611.4031.128Mar 102.042Jun 17
19601.5161.149Mar 192.088Jun 30
19591.5481.052Apr 182.134Jun 28
19581.5061.265Mar 172.057Jun 16
19571.6051.244Mar 132.195Jun 20
19561.6701.234Apr 112.338Jun 22
19551.5861.271May 22.128Jul 17
19541.7201.219Apr 12.313Jul 7
19531.7191.402Jan 12.240Jul 5
19521.6211.204Apr 32.210Jul 2
19511.7931.292Mar 282.502Jun 18
19501.6561.241Apr 252.182Jul 1
1949 (288 days)1.5991.256Apr 152.134Jun 7
19481.9111.140Apr 172.829Jun 26
19471.4531.231Mar 81.798Jul 4
19461.6981.134Apr 152.536Jun 29
19451.5581.143Apr 242.146Jun 22
19441.4331.177Feb 121.777Jun 24
1943 (165 days)1.3761.222Dec 211.631Jul 20

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

Monthly averages

MonthAverageLowestHighest
January1.4261.0381.724
February1.3831.0431.670
March1.3321.0421.791
April1.3340.9572.027
May1.6501.0062.913
June2.0701.3873.009
July2.0631.5152.798
August1.8621.3872.594
September1.6831.1992.530
October1.5661.1192.414
November1.5101.1042.204
December1.4671.0661.948

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Daily levels as CSV (29,938 rows; credit the original agencies listed below)