Snow
Dictionary.com: Meteorology. a precipitation in the form of ice crystals, mainly of intricately branched, hexagonal form and often agglomerated into snowflakes, formed directly from the freezing of the water vapor in the air.
CTB#7: In December, a scene of gentle white beauty, falling as a mesmerizing veil outside the office window. In April, a friggin’ pain in the ass.
Hail
Dictionary.com: Showery precipitation in the form of irregular pellets or balls of ice more than 1/5 in. (5 mm) in diameter, falling from a cumulonimbus cloud.
CTB#7: A short-lasting weather phenomenon wherein white ice pellets make a huge racket outside, scares the cat and makes the pavement slicker than snot. Usually followed up by rain and wind.
Sleet
Dictionary.com: Precipitation consisting of generally transparent frozen or partially frozen raindrops. A mixture of rain and snow or hail. A thin icy coating that forms when rain or sleet freezes, as on trees or streets.
CTB#7: WTF? Helllloooo up there! It’s April for chrissakes! What the hell is it with this flippin’ weather? We have cherries to worry about you know!