How much variance of temperature do you have during the year ? I live in Texas and it's a big question year to year . Normally the summers are hot and winter is 'mild' . I live in North central Texas bout 20 mile south of the Oklahoma line , the Wichita Falls area . But Texas is known for ..extreme ..weather from year to year . Usually we get a couple of little snows from 2'' to 6'' and it melts in less than a week . 2/3's of winter is T shirt weather but things can change quick . I remember 1980 , stayed over 115 degrees for near a month in July .But seen it get down to 8 below in a winter .
http://coolweather.net/statetemperat...emperature.htm