Michigan-Huron annual averages,AnnAvg,,, 1860,177.3351667,,,1860-1917 values are Harbor Beach gauge values 1861,177.3318333,,,1918-present are lakewide averages 1862,177.316,,, 1863,177.1796667,,, 1864,176.9955833,,, 1865,176.90525,,, 1866,176.80575,,, 1867,176.9365833,,, 1868,176.7891667,,, 1869,176.8250833,,, 1870,177.1,,, 1871,177.0769167,,, 1872,176.7318333,,, 1873,176.9188333,,, 1874,177.0413333,,, 1875,176.9683333,,, 1876,177.2855833,,, 1877,177.1971667,,, 1878,177.1183333,,, 1879,176.85325,,, 1880,176.90425,,, 1881,177.0205,,, 1882,177.1250833,,, 1883,177.2096667,,, 1884,177.2734167,,, 1885,177.3208333,,, 1886,177.3893333,,, 1887,177.1890833,,, 1888,176.9931667,,, 1889,176.8393333,,, 1890,176.788,,, 1891,176.6149167,,, 1892,176.564,,, 1893,176.6204167,,, 1894,176.6811667,,, 1895,176.4201667,,, 1896,176.3256667,,, 1897,176.5094167,,, 1898,176.5564167,,, 1898,176.5595,,, 1900,176.5626667,,, 1901,176.64175,,, 1902,176.5305833,,, 1903,176.5748333,,, 1904,176.7460909,,, 1905,176.7561667,,, 1906,176.7635,,, 1907,176.7844167,,, 1908,176.7670909,,, 1909,176.5988333,,, 1910,176.5025,,, 1911,176.3356667,,, 1912,176.4768333,,, 1913,176.67025,,, 1914,176.5297273,,, 1915,176.3535833,,, 1916,176.5715833,,, 1917,176.7980833,,, 1918,176.8866667,,, 1919,176.745,,, 1920,176.625,,, 1921,176.4883333,,, 1922,176.445,,, 1923,176.2641667,,, 1924,176.1866667,,, 1925,175.9191667,,, 1926,175.885,,, 1927,176.1483333,,, 1928,176.4433333,,, 1929,176.8958333,,, 1930,176.6508333,,, 1931,176.1183333,,, 1932,175.9408333,,, 1933,175.8675,,, 1934,175.7666667,,, 1935,175.8908333,,, 1936,175.9391667,,, 1937,175.9225,,, 1938,176.1408333,,, 1939,176.2691667,,, 1940,176.1416667,,, 1941,176.1216667,,, 1942,176.3341667,,, 1943,176.6266667,,, 1944,176.5966667,,, 1945,176.57,,, 1946,176.6016667,,, 1947,176.5666667,,, 1948,176.5308333,,, 1949,176.2108333,,, 1950,176.2608333,,, 1951,176.7358333,,, 1952,177.085,,, 1953,176.9333333,,, 1954,176.8291667,,, 1955,176.7225,,, 1956,176.44,,, 1957,176.2633333,,, 1958,176.0675,,, 1959,176.0058333,,, 1960,176.4775,,, 1961,176.3766667,,, 1962,176.2225,,, 1963,175.9225,,, 1964,175.6825,,, 1965,175.9158333,,, 1966,176.1608333,,, 1967,176.3008333,,, 1968,176.4466667,,, 1969,176.6958333,,, 1970,176.6783333,,, 1971,176.805,,, 1972,176.8883333,,, 1973,177.1233333,,, 1974,177.0933333,,, 1975,176.9733333,,, 1976,176.8991667,,, 1977,176.505,,, 1978,176.5908333,,, 1979,176.7941667,,, 1980,176.8033333,,, 1981,176.6983333,,, 1982,176.5983333,,, 1983,176.8333333,,, 1984,176.895,,, 1985,177.1266667,,, 1986,177.2925,,, 1987,176.97,,, 1988,176.5641667,,, 1989,176.4008333,,, 1990,176.35,,, 1991,176.4691667,,, 1992,176.4791667,,, 1993,176.6958333,,, 1994,176.6783333,,, 1995,176.5275,,, 1996,176.6541667,,, 1997,176.9841667,,, 1998,176.7166667,,, 1999,176.2358333,,, 2000,175.9783333,,, 2001,175.9508333,,, 2002,176.1183333,,, 2003,175.8916667,,, 2004,176.1108333,,, 2005,176.09,,, 2006,176.0158333,,, 2007,175.9433333,,, 2008,176.005,,, 2009,176.2583333,,, 2010,176.1108333,,, 2011,176.0366,,, 2012,175.9158,,, 2013,175.9,,, 2014,176.3016667,,, 2015,176.59,,,