What is the lowest temperature you have experienced outdoors for an extended period while wearing only a short-sleeve t-shirt?

Experiencing cold temperatures with minimal clothing, such as a short-sleeve t-shirt, can be challenging and potentially risky due to the exposure to harsh weather conditions. For many, the coldest temperatures experienced in this situation range from just above freezing (around 0°C or 32°F) to slightly below freezing (about -5°C or 23°F). Being outdoors in these temperatures with inadequate clothing can lead to discomfort and potential health risks such as hypothermia and frostbite if the exposure is prolonged. It is crucial to limit time spent in extreme cold conditions without proper attire and instead opt for layered, insulated clothing to maintain body heat and safeguard against severe cold exposure.