Survival Mode does not display warmth numbers in the vanilla UI without a mod. However, the game calculates temperature change every few seconds using this logic:
Practical Example:
Instead of a simple spreadsheet, the feature will utilize a Radar/Spider Chart for each armor set to visualize the trade-offs: skyrim survival mode armor warmth ratings work
(Imagine a chart showing "Fur Armor" having a large spike in Warmth but low Defense, versus "Daedric Armor" spiking in Defense but flat-lining in Warmth.) Survival Mode does not display warmth numbers in