Buzz that is just a generalisation for a standard atmosphere. The are many variances IRL, inversions whether you are in cloud or not. In dry air it's 3 degrees per 1000' in wet 1.5. Yes 2 degrees per thousands feet is about right but it is not the whole game.
As for the setting of wind. Absolutely no way would an A-10 have a you insert meters per sec instead of knots in a wind field.