I’ll try finding the links later
Forgot to do that. Anyways these use the desert to the west (mostly) of the Tucson to Phoenix line … low relatively hot desert that you only really want to hike in winter unless a true desert rat (well, even then rat status vs AZ sun in low desert outside of winter .. I’ll bet on the latter). Note there’s some water caching but also some alternatives in these reports. Is it too late now? Not sure as the Sonoran desert (AZ) usually gets it’s first rainfalls in January so that may help the water situation (that said don’t camp in flood zones). Speaking of water pretty sure I’d add a chemical virus-defeating treatment as some of these sources are recreational areas (including the Colorado river in the Laughlin NV area .. pool floaties in the river, beer, .. guess the rest).
Also noticing the packing lists below tend to be 3+ season variety, as it’s still “winter”.
Ok, enough warnings .. here’s the links w/brief description.
Here’s a 660 mile or so route skimming around Tucson then going west by northwest towards Riverside Co. in California
https://blisterfree.wordpress.com/2019/12/18/the-desert-wth-winter-thru-hike/
Arizona Winter Traverse 460 miles of southern AZ using Laughlin NV (south of Las Vegas, Baby) as a terminus.
https://bucktrack.com/arizona-winter-traverse/
If an early spring trip, it going up towards the Chihuahuan desert on Arizona’s east side (Duncan) since the rise in elevation should keep it cooler overall.
Now here’s one that zigzags a bit across the Colorado River a bit, coming from the Las Vegas area down to Yuma AZ or vice versa (AZ, CA, and NV). May want to look at prevailing winds..
https://seekinglost.com/thru-hikes/mojave-sonoran-trail-thru-hiking-route/
This last one gets to Yuma which can be pretty hot. When I lived in Phoenix AZ eons ago, the alt-paper had a mid-summer article reminding residents at least it wasn’t as hot as Yuma. So hot and cold can occur with winds.
Add there were some posts by the author(s) on thru-hiking forums about a potential link of these with some trails headed towards St George UT but think they’d be more seasonal (the Vegas – St George area can get a bit colder for winter).
Heck I might try one of these for the exercise .. so no one offers me a mall Santa job.