Nope, you won't need winter tires for driving anywhere in the area. If you plan on going skiing in the mountains, then I'd keep them and switch when needed.
I rarely gets below 30 here, and maybe only for 2 weeks out of the year.
BTW, I moved out here from NJ almost 10 years ago and still enjoy living out here. If you're moving from the tri-state area, it's going to take some time to adjust to the slower pace of life out here.