How much cold can the human body handle?

Pic related, Victor was a feral child found when he was 12

>Shortly after Victor was found, a local abbot and biology professor,Pierre Joseph Bonnaterre, examined him. He removed the boy's clothing and led him outside into the snow, where, far from being upset, Victor began to frolic about in the nude, showing Bonnaterre that he was clearly accustomed to exposure and cold

My feet would freeze if I was running barefoot in the snow. Am I just weak from spending too much time inside?