Details at the Canberra Times:
The coldest May in more than 50 years has left Canberra’s gardeners with frostbitten plants and dying blooms.
Canberra hasn’t suffered through a cold spell like this since 1961.
Average temperatures fell to minus 0.2 degrees compared to the historical average of 3.1 degrees.
The only colder May on record was in 1957, when the average low was minus 2.6 degrees.
This is only weather, but after 15 years it becomes climate change. 1957 was at the end of the 1940 to 1957 cold period when some scientist were worried about the coming of the next ice age. Stay tuned.