Just so, why does it feel like it's colder than winter?
Colder, denser air falls, displacing warmer air. In winter, you may experience more discomfort from draughts, as air entering the room is likely to be colder. This gives you an increased feeling of cold at the same air temperature, just as you feel less comfortable in strong winds than on a calm day.
Similarly, why is it cold but no snow? More moisture equals more snow and larger flakes because of the temperature. As it gets colder the flakes get smaller and smaller as the moisture in the air decreases in the falling temperature. Finally the air can become so cold that it does not hold enough moisture that produces snow.
Considering this, why does 72 degrees feel different by season?
Your body actually gives off radiant heat as well, and in the winter this gets sent to the colder walls more than in the summer. In other words, the radiant heat transferred between you and your surrounding structure makes you feel quite different in different outdoor conditions.
Is snow hot or cold?
Snow forms when the atmospheric temperature is at or below freezing (0 degrees Celsius or 32 degrees Fahrenheit) and there is a minimum amount of moisture in the air. If the ground temperature is at or below freezing, the snow will reach the ground.
