I worked out on the river for years walking on hot steel barges with the Summer sun heating up the coal in the barges that radiated out . It was like walking through ovens as we walked down the tow between the heaped up coal in the barge hoppers . There is no way one can get cooler in the summer when outside working jobs that require steel toe boots , long pants , long sleeved shirts and caps or hard hats , unless one wants to run around naked , and no one wants to see that .
But in the Winter , an extra pair of socks in my Gortex boots with my ice spikes on , my Arctic Carhart's , my Gortex glove liners , watch cap and hood and I was warm as toast . And as an engineer later in my tow-boating career , the engine room on those steel ovens would be like Hell on earth in the Summer , but like Heaven in the winter .You can always dress for warmth in the winter so I have always welcomed Fall and Winter .