it is a little bit but i understand; no hard feelings.
we're talking about touching something, not ambient temps surrounding your entire body. your body likes the air surrounding it to be ~70° F so it can maintain the desired 98° F that it takes to operate (source). one part of your body touching something cooler than 98° F won't exactly feel warm as soon as you touch it; you need to keep your hand on it to feel the heat build up as that part of the body starts to rise in temperature.
there's no source i can provide. i mean, just go touch something that's 80° and tell me if your hand feels instantly hot.