Are you thinking about going this time of year, or in April or May?
They get deep snow in Flagstaff, along I 40 near Grand Canyon. At 6,500' elevation, the first trip I took with my new to me camper in 1987 was to the Grand Canyon over Thanksgiving weekend, and it snowed, ice on the main road, and slippery. I could not even see the canyon through the fog. So I kept checking the newspaper for Flagstaff weather, and it kept reading in the teens and 20's all winter long, only getting warm in the summer.
May might be OK or warm, it all depends. . .
Check
Weather.com for the month that you plan on traveling. If you plan on traveling in March, also check Albuquerque weather, as it is 5,200' elevation, and also subject to snow between October and March.
I guess you are used to driving in the snow, but if you want to avoid it in the next couple of weeks, you can plan to travel between the storms, or go south to I-10.
Good luck,
Fred.
