From Hurricane Katrina to the Mississippi River floods of 1927 and 2011, and from a high temperature of 115 degrees Fahrenheit to a low of -19, Mississippi has seen its share of weather extremes. In fact, Mississippi's rainfall can be described in terms of "feast or famine." Even during the feast years, the rain may come at the wrong time for farmers to plant crops or in unwanted quantities. The Pearl River flood of 1979 is an example of too much rain falling over a short period of time with disastrous consequences. Mississippi Weather and Climate explores some of the reasons behind.