The mountains take away a lot of energy from severe weather unless it comes up from the southwest on the east side of the mountains . Greensboro was struck with a damaging tornado last year and that's just 20 some miles from me . The mountains keep us from being in the " alley " .
The mountains also keep some of the worst cold from coming down during severe cold periods , but it also makes a warm up slower . The Wedgies are also an issue that can keep me cooler during periods when a warm front is coming through . Tennessee , west of the mountains , warms up faster than I do from cold events . Our summers are very warm/hot , but Tennessee tends to be hotter normally in the summer .
Of course the eastern Sand Hills of NC are way warmer than me in the summer once you get away from the mountains far enough . Raleigh is far enough away to be hotter than I am in the summer too .
Just a few thoughts .