When does frostbite set in?

Frostbite typically sets in when skin and underlying tissues are exposed to freezing temperatures, usually below 32°F (0°C), for an extended period. Factors such as wind chill, wet conditions, and individual susceptibility can accelerate the onset. Initial symptoms may include tingling, numbness, and discoloration of the skin, progressing to more severe damage if exposure continues. It's crucial to seek warmth and medical attention if frostbite is suspected.