I grew up in New England, and every winter I'd notice a correlation between snow and ice on nearby lakes. I thought it went like this: When the weather gets cold enough, you get snow. When that snows falls on a lake, it mixes with the water to make ice (like jello). I firmly believed until I was about 11 or 12 that ice could not appear without snow, and if it did, it just meant it snowed while I was asleep.
A childhood belief about weather

others believed things like this
- i was convinced that snow was pink, i was devastated the first i saw real snow.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 - I used to think that snow was rain still in the bag.— Robert
- when i was a kid i used to believe that snowcones come from snow— Marianthy