Here’s what I’m willing to say:
Road temp affects tire temp. A warm tire conforms to the road better, offering better grip. A cold tire doesn’t conform as readily offering less grip. On a cold day, getting a tire up to a high operating temp takes a long time and (potentially) the tire will NEVER reach operating temp. On a cold, rainy day, the tire is cooled by the water flowing off it (kinda like how a radiator works).
Best advice? If it’s cold–be aware your tires might not be at optium operating temperature.
One of the cool things about the SM vid is if you watch you can see the tire slip on paint and then hook back up on the unpainted asphalt. That means that even though it’s cold outside, the tire is cool and the ground is cool–THERE’S STILL TRACTION TO BE HAD! Cold tires + Cold surface DO NOT equal skating rink. BUT you do need to use your head.