The Snow Miser is a character from The Year Without a Santa Claus. He controls the cold weather of the Earth like Jack Frost. He and his stepbrother Heat Miser are the offsprings of Mother Nature. (It should be noted that both Snow Miser and Heat Miser were not actually featured in the original poem that the special is based on.)
Snow Miser is the more easy-going of the two brothers. He tells bad jokes and puns about snow and cold weather, and he applauds the existence of Santa Claus as "the best advertisement snow biz ever had". As such, he easily agrees to help Mrs. Claus when she comes to ask a favor of the elements. However, his power must bow to that of his brother in the south who controls the weather in that region. When he's reluctant to cede to his brother's terms for the sake of Southtown's Christmas merriment, he is transported to the realm of Mother Nature to answer for the petty argument.
Snow Miser's minions live with him in an ice castle, and serve as backup dancers for the welcoming reception each guest receives upon arrival to their icy domain.