[nojay]

Originally Posted by GDB

Pretty sure that we're a year past Endless Eight at this point. Endless Eight happened when they were first years (and Asahina was a second year). They're second years now (and Asahina is a third year).

Is there anything in the anime episodes that says Kyon and Nagato are in their second year?

Spoiler for for manga:

The first chapter of the manga version of "The Disappearance of Nagato Yuki-chan" specifically states they're in their first year. The movie "Disappearance of Suzumiya Haruhi" where the -chan version of Yuki first appeared was also set in their first year at Kita High.