Parts of southwest Australia are having their wettest March in over a century. Ravensthorpe is having its wettest March since records began, 105 years ago. Its wettest day this March received four times their average monthly rainfall in one day at 54mm. Esperence is also having its wettest March since its record keeping begun in 1969 at 147.6mm, five times more than usual. Further west, Perth has received 69.6mm so far this month, its highest March total in 20 years. The cause of this month's significant rainfall can be attributed to warmer than usual sea surface temperatures surrounding the region. These provided cold fronts with more moisture resulting in this month’s rainfall records being broken. The last day of March will be mostly sunny, although this month will be remembered for its record breaking rain in parts of the state's south.