Last night I went walking. When I got out of the car it was -3C. Later on in the walk it had dropped to -7C. As I walked the return leg in the cold and snow, having been out in the cold for a little over two hours I noted that:-
Despite having two pairs of socks on my feet were beginning to notice the cold.
The light but bitterly cold wind was making my cheeks ache. Windchill dropped it to about -13C but the wind was bitterly cold.
Now I'm not used to such cold conditions so it got me thinking. When do you need to start thinking about insulated boots, balaclavas and the like? At what temperature are you flirting with the risk of frostbite?
Advice from those more experienced most welcome. I accept it can't be definitive as people do run at different temperatures but some guidance would be welcome.
Possibly this stuff might be covered in a winter skills course but I'm not likely to do one of those because I'm highly unlikely to ever really need that training.