Extreme drought occurs in Texas during more than 25% of years. Below are all the years since 1900 which experienced Palmer Drought Index extreme drought for at least one month during the year.
1910, 1911, 1917, 1918, 1925, 1934, 1935, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1963, 1964, 1967, 1971, 1974, 1978, 1981, 1989, 1996, 2000, 2002, 2005, 2006, 2009. 2011
