You are about 1 1/2 hours to Chattanooga (T Wall), Clayton (Tallullah Gorge) and La Fayette (Rock Town). I would consider those options and skip the coopers place... These are also great winter destinations.
it's never too cold to climb in the southeast, however, rain can be a problem especially this year. watch the weather.
there is no sport area where you are going only climbing areas that contain a few sport routes. if you are not a trad climber you may want to stick to rocktown or sandrock AL to get the most bang for your buck. otherwise, you may spend a lot of time looking and very little climbing.
sandrock actually has quite a few sport routes by southeastern standards and you can always fill in between climbs with some great bouldering.
By Jon Powell From LAWRENCEVILLE GEORGIA Dec 27, 2013
From Blue Ridge you are 2 hours from Sand Rock and the hike is like 5 minute from the car. It drys pretty quick and is normally sunny. Mt Yonah is right at an hour from Blue Ridge with about a 45 minute hike to the lowers and white wall. The main face which has some pretty moderate to easy sport routes was wet today (December 27) and had some ice on the left side. The lowers where completely dry climbing.