In Melbourne, the likelihood of 10cm hailstones hitting the city would increase from once every 20 years to once every three years, according to the study's findings.

"In Melbourne, we saw that in the historical simulations, you might expect a 10cm hailstone, so that's like a pretty big hailstone, to occur once every 20 years in those simulations," the author of the research paper, Dr Tim Raupach, said.

"But in the future scenario, that time reduces to every three years.

I'm already scared enough of getting my skull caved in by one of the skyfalling rocks, this isn't going to be a fun future.