frigid, frosty, frozen, glacial, icy, wintry -- (devoid of warmth and cordiality; expressive of unfriendliness or disdain; "a frigid greeting"; "got a frosty reception"; "a frozen look on their faces"; "a glacial handshake"; "icy stare"; "wintry smile")
frosty, rimed, rimy -- (covered with frost; "a frosty glass"; "hedgerows were rimed and stiff with frost"-Wm.Faulkner)
crisp, frosty, nipping, nippy, snappy -- (pleasantly cold and invigorating; "crisp clear nights and frosty mornings"; "a nipping wind"; "a nippy fall day"; "snappy weather")