yeah snow is cold...u never seen snow? where are u from?...well u cant wear swimtrunks in the snow but yeah u do get cold and in about an hr or 30 min depending on how the temp is u will need to go back inside...its a challenge to juggle in the snow...u lose ur footing most of the time and the ball does get slippers thats why u gota whip it off alot..and eventully the ball will deflate in the cold temperatures...
when temperature reduces, pressure of air (or any gas inside) reduces.. and atmospheric pressure plus the elasticity
of the ball material makes the ball to reduce in volume and u get deflates, do to molecules moving slowly, but if u look in ur freezer and scrape some ice to get shavings, thats kinda like snow but alot more off it...