I never said they didn't exist, I was implying they lacked definitive proof. These however, are better.
EDIT: And some people need to relax. I wasn't being argumentative, you guys lacked evidence. And I still cannot say the seasons are just like the earth's. Seasons, yes. But there are no descriptions of them to be like earth's.
I was hoping that someone would explain to you how it works, but I suppose I'll have to do it.
"Evidence" is not required for proving the obvious, especially when the raised doubt is, as in your bewildering case, the result of an inexplicable, completely random notion. Common courtesy would dictate that if you are going to go on something like this for two whole pages, you would at least share your reasons for defending the idea, and explain its importance. Otherwise it is a waste of time, and it is argumentative. Nirn may not have a tilting axis, but weather and seasons are earthlike, as are physics and most other areas of science. You can quibble over gaps inimple textual evidence until the vernal equinox comes, but you need only common sense to see the similarities between Nirn and Earth, with its agrarian societies and customs that often revolve around the agricultural cycles of the four seasons. The devs don't spell this out because they shouldn't have to.
If you have any similar ideas about Tamriel's lack of shoehorns, plows, mosquitos, tornadoes, aurora borealis or eclipses, please be advised that there is likely no evidence that these phenomenons exist. But most of them do.
We do not need evidence.