The Elder Scrolls II: Daggerfall had seasons in the province of High Rock. The game started out in the dead of winter, but after a month (I think) passed, the snow began to melt. Then, after another month, everything was green. Then, after several more months, it began to snow again. Then, the cycle would repeat.
If I was bored enough, I could load up
Daggerfall right now, have my character sit in an empty field, and record the game footage for a really really long time. Then I could upload it on Youtube and show you that the seasons DO change, REGULARLY, EXACTLY LIKE ON EARTH, in the most boring gaming video in the history of the internet.
However, I'm not that bored. So all I can do is reccomend that Mr. Oblivion play
Daggerfall.How can I be wrong? There has yet to be provided, ample proof to state the similarities between the two. There isn't a right or wrong...
What more similarities do you want?! Winter is cold. Spring comes after Winter and is slightly warmer. Summer comes after Spring and is even warmer. Fall comes after Summer and is colder again. Then Winter returns, and it's cold outside.
And in the end, there is this: if the developers had intended for Tamriel's seasons to be any different than Earth's, they would have said so.