Spring doesn't automatically mean cooling down - it's a transitional season and weather patterns can swing wildly, especially with what's happening in the climate right now! What you're seeing with Sydney hitting 33°C while southern NSW gets snow is actually pretty typical of the chaos we're experiencing - warm air masses pushing up from the south, then cold systems dropping down unexpectedly, all compressed into a smaller timeframe. The fact that it's the warmest spring start in over a century suggests the overall trend is shifting hotter, but that doesn't mean every day gets cooler. Extreme temperature swings like this are becoming more common because the atmosphere's got way more energy in it than it used to!