Wow! 60 degrees feels really warm after all the temperatures in the 40s and low 50s

I went out to do some work outside in my yard today and put on a warm coat. But, soon I was just too warm and took it off and put it in my truck. Later, my dog wanted to play and I realized even without a jacket I was too warm and so took off my flannel long sleeved shirt as well and played with her in a T-Shirt, The High today here is about 60 degrees but for some reason it feels more like 70 degrees Fahrenheit.