Since I grew up in the Poconos I can relate to the low temperature and changes in Pennsylvania. FYI, my son is living and hunting in Colorado so we do the temp problem for his 30-378 and 7mm maggie.
Since your first criteria or problem is low temp, I use and suggest magnums below 40F and for powders with slow burning rates such as or near 4831, 4350 etc or for seriously , pardon the pun, overbore cases with water capacities over 60 grains. I am a CCI man because they give, by actual tests, a very low SD in MV and a very low and consistant flame propigation that is only exceded by the Wolf brand and the Match series of primers. This means that for the 30-06 with a 4831 powder load for hunting go with CCI 250's. I helped someone also in Colorado with his -06 problem and we worked out a load with IMI cases and Nosler bullets ahead of CCI 250's.
Now lets go the other way: it is 95F at 4 pm in Georgia and you are loading to 62,000 cup for your max load and you have Magnum primers. Not only no but Hell no! You will have an overpressure load that you had best be not trying in your '03 Springfield.
If you get into real serious loading, May I suggest "Quck Load" for your computer as it has a wide data base of powders that will tell you, for example, that your 4831 full case load in your -06 is only going to burn 88% of your powder before your 180gr bullet clears the muzzle of your 22" barrel. A waste of powder and more recoil than necessary. As a CYA, I will not suggest any specific loads unless you allow me three shots at your attorney at 800 yards--
And for one more serious suggestion, remember that the bore-groove diamaters, as they relate to the twist and actual bullet diameters ( to the ten thousandth ), will determine what bullet your barrel likes to shoot- that is only verified by target results, the results from your chrony and a ladder test for accuracy.
Reduced loads with ball powder are not condusive to reaching my age and Yes, many bench comps are won with serious shooters/ hand loaders using such as -15 and -22, but because my military basis is that the M1A, for example, is specifically designed for a specific powder burning rate equal to H-4895 ( the other 95 powder is great also but not Varget in that gas gun!) , I stay with stick powders even going the VV route for max-max with a 300wsm and 210 Bergers. No I won't give the load but the pressure is at the 65,000psi level; not for casual powder charging- unless you like to change to glass eyes and polymer fingers---
It is now 2235 and my arthritis says it time to quit so that is it for today.