There are probably a dozen, at least. Here are a couple of examples off the top of my head:
For a very long time, when you asked Siri the temperature, if it was above 80°, she would add the word "hot" to the end of it. "It's 81 degrees. Hot." Where I was living at the time, 81 degrees meant a light sweater was in order.
When I lived in Chicago, Apple's headphones were worthless in the winter because they were made of plastic that was perfectly bendy in Silicon Valley's climate, but would turn into the equivalent of unweildly coathangars attached to your ears in actual winter conditions. I don't know if that's still the case, as it's what made me switch to wireless headphones years ago.
Even today, where I live in the desert, it's not unusual for a current model iPhone to go into thermal shutdown (with the appropriate warning on the screen) on a perfectly normal spring or summer day, even though I don't use a case. But I expect (hope) that's about something involving electronics that I don't understand.