Hotter in the 30s...40s...?
Here? In March? Nope, never.
Yes Virginia, there really is a Santa Clause?
According to your own weather statistics from official sources, Melbourne Australia set many of it's records heat wise in the late 30's, early 40's, including the temperature for March in 1940, which averaged 28.9 centigrade, a temperature five degrees above the norm and only a tenth of a degree short of your current average. It's a pretty safe bet that you wont be beating it this year, but hey, shit happens and maybe you'll manage it even though March cools as it progresses down under, unlike here where all I have to look forwards to is more fucking heat for the next 7 months...
You did manage to replace the single day record of 41.7, also set in 1940, with a 42.2, so congrats on that.
Edit: Fuzzy, I posted facts frequently, they were simply ignored by anyone that disagreed with them. I presume the course will stay true, since the ability to self delude even to their detriment is a human trait beyond compare.