Well for a soft Sydneysider I think it is definitely winter - well at 0600 on sat mornings it feels like it.
CC - I ordered some GE witches britches the other day too. Am a big fan, I got to try them on a couple of not too early rides in Canberra on the weekend. To be honest I won't bother with full tights after using them, they will be quite enough for an aussie winter. I am going to have to sort out my feet though, even in a very daggy pair of toasty hiking socks my toes were v numb after 90mins.
Notummymummy - love your avatar! is that your bub?
On the snow topic, my husband comes from Hobart and yes one Christmas when visiting his parents there was snow on top of Mt Wellington.