SPI Class

Nb of years

Years

Extremely wet

5

1883, 1897, 1918, 1948, 1975

Very wet

6

1893, 1911, 1938, 1968, 1969, 1991

Moderately wet

13

1877, 1896, 1902, 1907, 1912, 1926, 1929, 1935, 1943,

1944, 1949, 1953, 1963

Near normal

99

1876, 1878, 1879, 1880, 1881, 1882, 1884, 1885, 1886, 1887, 1888, 1890, 1891, 1892, 1894, 1899, 1900, 1903, 1904, 1905, 1906, 1908, 1909, 1910, 1913, 1914, 1915, 1916, 1917, 1919, 1920, 1921, 1922, 1923, 1924, 1927, 1928, 1931, 1934, 1936, 1937, 1939, 1940, 1942, 1945, 1946, 1947, 1950, 1951, 1952, 1954, 1955, 1957, 1959, 1961, 1962, 1964, 1965, 1966, 1967, 1970, 1971, 1973, 1974, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1986, 1987, 1988, 1992, 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012, 2014, 2015, 2016, 2017, 2018, 2019, 2020

Moderately dry

14

1889, 1895, 1898, 1901, 1925, 1930, 1941, 1956, 1958, 1960, 1983, 1984, 2013, 2021

Severely dry

4

1972, 1985, 1993, 2010

Extremely dry

5

1932, 1933, 1989, 1990, 1999