If you throw cold water into the air on an extremely cold day, it won’t necessarily freeze. But toss boiling water into the air in sub-zero temperatures, with air temps less than -14° Fahrenheit/-26° Celsius to be exact, and you’re in for quite an entertaining (though a bit dangerous) surprise. The water technically doesn’t convert to snow, but it does become a cloud of vapor that looks quite a bit like snow.
Just remember to carefully mind where and how you toss the boiling water. You definitely don’t want to throw it into wind blowing in your direction.