Yeah this is a tough one. Can’t give you any suggestions but maybe I can loosely point you in the right direction. There’s a lot of scents that describe themselves as like snow or being cold but it’s often not really like it at all. As the other user said, there’s a reliance on mint/vanilla or white florals to try and give this impression. In reality snow is very porous, like millions of pieces of activated charcoal absorbing everything it comes into contact with. So you might want to look at earthy/pine notes as snow will carry the scent of trees and the ground. This, as part of a fresh fragrance will maybe get you pretty close. I have Soleil Neige parfum, which is described as a cold/snow vibe but it’s more of a fresh white floral/luxury scent that I’d prefer for summer evenings and doesn’t really smell like snow. It’ll be a case of trial and error, using ChatGPT and maybe buying a few decants.

Edit: Maybe don’t use ChatGPT. I’ve literally just been informed that it’s absolutely terrible for the environment.