Some spiders hibernate during the winter months, but that's not true of all spiders. Spiders that do hibernate usually hide under the bark on a tree or under piles of leaves.
Brown recluse spiders are known as warmth-hunting spiders, because they seek out shelter in the winter and remain active. This type of spider generally likes to hide in homes and other structures, in dark places that are rarely disturbed.
Other spiders lay a sack of eggs and then die out in the winter. When springtime comes, their eggs hatch out. The jumping spider is one such spider who lays its eggs in a warm spot to ensure its offsprings' survival before dying.