Cold represents the most ever present danger to your character particularly early in the game.
Cold consists of four factors that influences your body temperature:
- Air temperature
- Insulation of clothing
- Wind Protection of clothing
Your overall temperature is determined by (Air temperature + Clothing insulation) - (Windchill - Clothing wind protection). If the Clothing wind protection is higher than the windchill, any extra points are lost. If this temperature is at freezing (0°C/32°F), the bar will remain level. A temperature lower than this decreases the bar, and higher will increase it, with more extreme temperatures raising or lowering it faster (the highest grade in either direction is three times) As it lowers you will receives warnings on HUD and verbal complaints about the cold from your character. If the bar fills, you will become hypothermic and begin to lose Condition. First Aid is not needed to regain lost temperature once the bar depletes, just move the player to a warm place.
Temperature can fluctuate wildly over the course of the day. In general, it is warmer during the day than at night, and clear skies are warmer than fog. Midday tends to have the highest outdoor temperatures. In buildings, the windchill is always zero, so that makes them much warmer. Blizzards can drop the temperature to the extreme. A windbreaker, a place that can provide shield from the wind, can be a good place to set up a fire or wait out a storm to survive the blizzard.
Surviving the Cold
Warm clothing provides the most effective solution against the cold, but degrades overtime, as well as degrading even faster if attacked by animals. Keep clothing repaired and make sure you are wearing the maximum number of layers when required.
Fire from campsites, woodstoves, flares, and storm lanterns can also warm your character, but require using items or creating a fire.