I just want to point out something that I noticed. 40 degrees in Houston is cold to the bone. While in Arkansas 12 degrees was somewhat comfortable. Relative Humidity makes a difference. I am sure someone on here can break it down better.It's 18º outside right now and feels good, just a sweatshirt on, 60º and overcast is a perfect day for me . DD has played softball up here in 25º and snowing with short sleeves lol. She does not like the 95º+ days.