Jumping in late but the above tips are correct. I only wish too add that dealing with wood movement is something I have learned in the past year with a couple of projects. I also built a tv stand with solid wood and added a breadboard on the ends. To deal with wood movement, I attached the end board with a sliding mortise and tenon and glued the center 6 inches on a 18 inch wide top. That has allowed the top too move with no problem. I also built a dinning table for one of our sons using the same method. Over the winter, with the use of a wood stove in his home, the 40 inch table top has shrunk about 3/8 of an inch with no problem. I glued the center 10 inches on the table. I'm sure the experts on this site can correct me if I'm wrong, but I believe you can safely center glue 1/4 of the total width.
Its' never hot or cold in New Hampshire... its' always seasonal.