arc·tic /ˈɑrktɪk or, especially for 7, ˈɑrtɪk/ Show Spelled[ahrk-tik or, especially for 7, ahr-tik] Show IPA
adjective
1. ( often initial capital letter ) of, pertaining to, or located at or near the North Pole: the arctic region.
2. coming from the North Pole or the arctic region: an arctic wind.
3. characteristic of the extremely cold, snowy, windy weather north of the Arctic Circle; frigid; bleak: an arctic winter.
4. suitable for use in the arctic: arctic boots.
5. extremely cold in manner, atmosphere, etc.: a look of arctic disdain.
According to number 5, it is legit for use on Hoth. I'll allow it.