In addition to the announcement of three new Stuff Packs for The Sims 3, Electronic Arts have also released a small batch of screenshots for The Sims 3: Seasons which is set to be released next week. While Sims 2: Seasons may or may not have been your cup of tea, the Sims 3 iteration of it utilizes not only the weather changes but implements a number of town events based on the seasons from ice-skating and snow days in Winter to Halloween in the fall.
These screenshots cover only the Winter season.
