In this part of Canada, anyway, it’s the “opening the cottage for the summer” weekend.
Queens birthday in the NZ. in NZ the 1st monday in June was chosen because it was a winter date. that meant people were not taken away from farm work during the growing and harvesting seasons. agriculture is the mainstay of our economy. (nothing to do with the ski season) how is the day celebrated in NZ ? the state TV broadcaster, TV1 usually has a couple of programs on the Queen and/or her family. these programs have a large viewership as there is a lot of support for our current constitutional arrangements, Realm of NZ. otherwise people sleep in and then shop until their plastic is used up.
It doesn’t snow here, Cazzle. The entire state is either subtropical, tropical, or desert.
I posted a thread about our traditional Victoria Day activity a couple of years ago: Gun-fire at the Saskatchewan Legislature!
That whooshing noise wasn’t the sound of a skier carving parallel turns. 
I’m in the colder southern part of the country and ski pretty much every year. For a minority sport there are many shops selling ski gear in the centre of the city, and snow reports accompany pretty much all news broadcasts over the winter months. There are I guess four or five fully equipped mountains within driving range from here and the biggest problem is usually finding accommodation.
While the Queen’s Birthday long weekend traditionally marks the start of the season, there is often insufficient snow to make it worthwhile joining the fray and most people I know wait a few weeks for things to settle in before heading up to the snow.
Try googling Falls Creek, Mt Bulla, Mt Baw Baw, Mt Hotham to see what Australian ski fields are like.
M
As a Victorian, I have always associated Queens Birthday with the start of the ski season (although technically the shoulder season). It is usually reported as such in the media, and I usually respond by going snowboarding soon after. This is true at least for New South Wales and Victoria. It is safe to say that most Victorians and New South Welshpeople are aware of the connection between the Queens Birthday and the ski season.
I was not aware that the situation was different for warmer climes, but I guess it makes sense. It is worth noting, however, that the combined populations of New South Wales and Victoria alone account for around half of the national total, so the phrase “most Australians” in the Staff Report may not be erroneous.
Gotta say I’d never heard of the Queen’s Birthday - start of the ski season thing before, but then skiing isn’t really on my radar (though it is for quite a lot of people in Sydney). We also have an official “start of the swimming season” and that is, IIRC, the October long weekend (Labour Day). This latter one was something I was more aware of as I grew up by the beach, and I can tell you that it was often warm enough to swim before that or not warm enough to swim for some time after that. And from what the snow types tell me, Australian resorts have patchy and unreliable snow around the edges of winter, so people seem to simply swim when it’s warm enough and ski when it’s cold enough. The weather report probably plays a much bigger part than any sort of official date.