Welcome to iRV2.
From the west coast.
Late December and January are the worst weather in NV and California .
The passes , will have snow and bad weather, even those way south ; CA 58 and I-10 will be questionable . Any way to delay your trip home to late February ?
BTW: I've Snowbirded in Southern California for the past 10 years and seen all kinds of bad weather on our trips back to Canada to reset travel medical.
You probably will have major travel issues the closer you get to home , you know what Ontario winters are like.