It's not totally Australia wide. In Canberra we're having trouble keeping up with the extracting. I do a lot of cut-outs and re-homing of bees from possum/bird boxes and the difference between this year and last is stark. The struggle the bees had last year Is completely different to the flood of honey that's been coming in this year. I removed 2 hives from the walls of a house 2 weeks ago along with 80 kg's of honeycomb. The last bird box I took down weighed 18 kg's and had very little room left inside for brood. 2 hives I extracted at a friend's house on new years eve were ready to be extracted again on my next visit in mid January.
I don't know why this season has been so good compared to last, as the weather has been pretty similar to last year