The phrase "arctic winter" refers to the extremely cold and harsh winter season experienced in the Arctic region. It is a period characterized by freezing temperatures, long nights, snow, and strong winds. Full definition
During cold arctic winters, I dig for warm spots. (dogster.com)
The village of Pellston in Michigan often sees arctic winters, with a thermometer - shattering record low of -47 °C in 1933. (newscientist.com)
To more fully understand Arctic lake dynamics and to document the changes we have observed requires also doing fieldwork under often harsh conditions during the cold and dark arctic winter,» said Benjamin Jones of the U.S. Geological Survey in Anchorage and co-author of the new study. (sciencedaily.com)