This is how people have fun in really cold weather.
I never had the opportunity to try this (yet) or even to attend such an experiment, but I think it is really cool!
January 2009, -26F outside in Sanford, Maine. Throwing hot water into the air produces instant snow.
Now, here is a more elabored experiment conducted by Mount Washington Oservatory Staff in March 2007.
Water was boiled to a temperature of approx. 200F and then thrown into the air which was at -35F. This turned it to snow instantly. The video has shots in real time and shots in infrared to show the water leaving the objects hot then dissipating in the cold air without touching the ground.