I have a 2015 that still has 100% SOH and can easily drive over 100 miles in all seasons here. ( We don't have cold winters, so no winter tires or snow to deal with. ) A 2018 with the slightly larger battery would be more likely to do that in colder weather, and probably the battery would last a bit longer too.
Looking again at Craigslist I don't see any 2018s on sale. Perhaps they are too new, but also there may be very few of them in California. Kia shifted focus on sales away from California to the Pacific North West a few years ago seemingly because the battery lasts a lot better in the cooler climate.
There are many reported cases of battery replacement in Southern California and especially Arizona.
The car on Craigslist I liked best is this one - 2017 KIA Soul EV Hatchback $14,000 (santa rosa)
Only 10k miles. Looks in good condition, and a decent spec.
I don't know the full spec of the EV- cars, but would be wary that they do not have heat pumps or battery warmers which may be needed for your location.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.