Efm, Sorry, I didn't mean to offend you. Probably the biggest single issue with firearms is the over use of oil or grease. Parts in an engine are subjected to hundreds of psi friction between moving parts and need to be lubricated. In a firearm, 25 psi is about the most you will ever experience on moving parts so they don't need anything more than a fine film of oil. The primary mission of oil in a gun is NOT to lubricate moving parts, rather it is to prevent rust or corrosion. Fact is, when a firearm is over oiled, most of the oil runs off and collects elsewhere in the gun. Eventually, the carrier in oil will evaporate, leaving a gummy substance behind that will impede parts movement. In other words, excessive oil increases friction instead of reducing friction. I base this on the hundreds of guns that came into my shop over a period of 31 years. When guns quit working it was often nothing more than an accumulation of gummy oil that caused the problem. A little solvent and a good cleaning put the guns back in service.
If you read the owner's manual that came with your Rugers (other brands too) they usually reinforce the "light film of oil concept". There are two ways to do this. One is to apply a small amount of oil then use compressed air to blow out all the excess. The other is to fully disassemble the gun and wiped down each part with a lightly oiled cloth. The lightly oiled cloth is the best method but many gun owners fall short of the skills needed to do this. What you shouldn't do is to go gluck, gluck, gluck, with oil can or CLP in the bowls of your gun.
If you follow the "light film of oil" concept, your guns won't rust and will not wear out in a lifetime. Several of the guns I own were bought in the late 1950's and '60s. None have the slightest bit of rust, they all work just fine, and all of them have been fired a lot. Having lived in many different climates, (Florida, Arizona, Colorado, Iowa, etc) this light film of oil concept proves the point.
Back to your question .... if you use the "light film of oil" concept with Ballistol, Breakfree, or conventional gun oil, you will never have a cold temperature related issue with your firearms.