Cold weather shooting - bullet path

[benstt]

The last few years I've noticed my pistol shots hit lower on the target when its colder (around 40* and below). Have the rest of you had a similar experience or is it shooter related?

 

[Annihilator]

I know my dad always kept his ammo in his pocket when hunting in cold weather to keep it warmer then in his gun while out.

 

[Keystone19250]

I remember last year going to the outdoor range in the morning on very crisp fall day and seeing some differences in my groupings until it warmed up, I associated it more to a cold barrel, didn’t think about the rounds.
Good point @Annihilator.