Quoting myself here ...
Look at Ohio State last year in November games...
CJ Stroud passing yardage:
Nov 8 (at Nebraska): 405 yards
Nov 15 (Purdue): 361 yards
Nov 22 (Michigan St): 432 yards
Nov 29 (at Michigan): 394 yards
TD-INT combined in November games: 15 TD passes, 2 INTs.
Stroud is a native Southern Californian, and those were his first games playing in the Midwest in November. He was averaging about 400 yards passing and 4 TDs per November game last year.
USC and Caleb Williams is a reasonable comparison with Stroud. No, doesn't mean Williams will put up numbers like that. But it also doesn't mean, "oh no, November, I'm going to suck playing in the cold!"