Parts of southern Australia have seen their heaviest two day October rainfall in over a century. A slow moving low pressure system brought persistent and copious amounts of rainfall to southern parts of South Australia and Victoria on Monday and Tuesday this week. In Victoria, Wilsons Promontory recorded 80.2mm of rain in the 48 hours to 9am Wednesday. This is the heaviest two day total for October in 127 years. Elsewhere in the state, Portland saw 74mm during the same period, the heaviest for the month since 1982. Over the border, Mt Gambier picked up 62.4mm, the heaviest two-day total in October since 1946. This was also the heaviest rainfall there for any month since January 2011. The low has moved into the Tasman Sea and cool southwesterly winds have been left over the sodden region in its wake. Further showers will bring another 10-20mm to southern Victoria over coming days, although a repeat of this two-day deluge is unlikely.