My car Knows Things. One of the things it knows is that it was 31 degrees outside when I was driving around yesterday.
You can keep your "meteorology" and your "accepted convention" -- I have two signs that tell me when summer has arrived in Auckland (whichever comes first):
- When it's the heat keeping me awake at night instead of good old-fashioned insomnia.
- When I get out of the shower and find that I can't actually get myself completely dry due to the humidity.
I said enjoy, damnit!