I don't know how young I was when I thought I learned this, but up until very recently, I thought it had to be exactly 32 degrees F. in order for it to snow. That, and if it goes below 32 degrees, it's too cold to snow.
A childhood belief about weather

others believed things like this
- i used to think that only men could get bachelors degrees. i thought women got bachelorettes degrees.Anon
- i was convinced that snow was pink, i was devastated the first i saw real snow.Anon
- I used to believe that if you turned the thermastat temperature above 70 degrees that everything would melt.Anon
- I thought snow had diamonds in it because it sparkles when the sun hits it.— Giselle
- When I was a kid I thought Mary had a little lamb whose FLEAS were white as snow.— jen
- I used to believe that I could smell when it was going to snow.
(I still can!)— sw