The chance of Northern Tasmania receiving above-average rainfall in future months is still high, with the Bureau of Meteorology continuing its La Nina watch.
The BOM said that the chances of a La Nina occurring sits at 50 per cent, which is about twice the normal likelihood.
Climatologist Andrew Marshall said a La Nina meant above-average rainfall for northern and eastern parts of Tasmania.
He said every La Nina event was different and depended on other things happening in the climate system.
"So over the historical Tasmanian record those increases in rainfall have mostly occurred in the spring time, September to November and that can extend to summer but the main impacts have occurred during that spring period," Dr Marshall said.
"That can vary from year to year, so, for example, our last strong La Nina event was in 2010-2011 and we saw some wetter conditions particularly over parts of North-East Tasmania, where in spring we saw an increase of up to 50 millimetres of rainfall over that period.
"In other years we had weaker events, where rainfall was closer to average."
Dr Marshall said a La Nina occurs when water temperatures at the surface of just below the surface start to cool down in the central and eastern tropical Pacific Ocean.
"It is where the water cools to about a degree below average, and when that is sustained for about five months or so, we have this La Nina development," he said.
"Those cooler waters are coupled to an atmospheric response, and over the Pacific we see the trade easterly winds - the normal winds - strengthen."
The 2010-2012 La Nina events led to record rainfall and flooding events in Australia, followed by severe drought.