I found another interesting photo in an aviation forum that looked like a good candidate for colorizing, and here's the "Before and After" views. I can't imagine how cold it was in these WWII airplanes, but the scarf, gloves, leather boots and fleece lining that the pilot is wearing would seem to suggest that it was pretty cold. It's because of sacrifices from guys like this that we still have England.
After a bit of research, it appears that was a photo of Adolph Gysbert Malan, and you can read more about him here: Sailor Malan: a Battle of Britain Pilot.