I have tried hard to get my arrows and bow tuned near perfect. As I was shooting today at 15 degrees my arrows seemed stiff on spine for my bow. Does the cold slow down the action of a bow enough to make your arrows to stiff. Just curious.
The cold should have little effect, especially after a few shots. Maybe your clothing was screwing up your draw length, or you were hitting a sleeve, etc. The Byrd expedition to Antarctica (1930's) took selfbows along and used them at temps well below zero farenheit. Bows are very resilient.
Hunted Indiana and 20 degree weather for years with a Damon Howatt Hunter and the weather effected me more than the bow. You have to limber up well before hitting the woods and do a discreet draw once an hour or so.
I practice in temps considerably colder than 15 degrees all the time...
I've hunted moose and snowshoes in temps past -40 with no ill effects. I'm sure John from Tok has hunted in even colder then that.
A buddy of mine has had finish problems in the cold, however that was resolved. Ended up spiderwebbing like a glass window would.
All of the above is right on. Put all your cold weather gaer on and fake draw without the bow. Especially feel the back muscles draw together. You'll notice a big difference even without the bow in your hand. Add your bow and it begins to get tight fast. It tkaes a bunch of cold weather practice to get things right.
I think the cold weather affects us much more than the bow. We just don't always realize it.