There are literally thousands of examples, here is but one.
Melbourne had 3 consecutive frost days in 1944. However the BOM decided we didn’t, and adjusted the temperatures in an upward spike.
Now here comes the problem. Here is an article from the Argus showing that we did in fact have temps below Zero in Melbourne.
Only 15 degrees F below normal. Either the newspaper journalist is a downright liar, or the BOM is downright lying.
Let me go away for some think music and see which one it might be.