Imaging increased warming from sunlight raising ground and building temperatures probably impacts “felt” temperature quite a bit. There a few different heat tr

Imaging increased warming from sunlight raising ground and building temperatures probably impacts “felt” temperature quite a bit. There a few different heat transfer mechanisms, with conduction and radiation being the big ones we care about here. Cold air impacts heat transfer via conduction, but temperature of surrounding surfaces (like buildings and the ground) impacts radiative heat transfer, which makes us a significant portion of your bodies heat transfer into it’s surrounding environment. Which is the reason why a clear night is colder than an overcast night. The clouds above reflect a significant amount of radiant energy back at you on a cloudy day, and on a clear night you’re directly exposed to cold emptiness of space which will radiate effectively zero heat back at you. Good place to experience the difference between conduction and radiative heat, is being near a camp fire on a cold night. The camp fire doesn’t really warm the air around your body, but the emitted IR has a huge impact. Hence you end up with a very warm front, while still having a very cold back.