Pants are apparelbottoms that have material which covers the entire leg, down to the ankle.
About Shorts:
Shorts are apparelbottoms that have material cut short above the knee or slightly below the knee.
About Winter:
Winter is the coldest period of the four seasons. Winter occurs between fall and spring; during the months of December, January, and February in the northern hemisphere; and during June, July and August in the Southern hemisphere. Winter is characterized by cold weather, with snow and ice on the higher latitudes.