X continent

[Christofferson]

We would like to travel from DC to California. If we take the southern route how early can we travel in the spring and not worry about freezing?

[Kim Gass]

Which southern route? I 40 or I 10?

[Christofferson]

Either route. Is one better than the other?

[Kim Gass]

I 40 runs through some high country. We found snow in May though it was not roadside.

here is an elevation profile https://www.roadtripamerica.com/foru...and-California

I 40 in March can be troublesome in the East. We have come back from FL in mid March in blizzards in both 2018 and 2019

What exactly is springtime?

[NC Roamer]

You can definitely run into snow or ice in the Tennessee/North Carolina mountains. Not someplace you want to be caught in a winter storm.

[Kim Gass]

By the end of March you ought to be able to avoid/anticipate rough weather. Freezing is the least of my worries on our four southern trips from Maine. We can deal with that. Bad weather sometimes means finding a place to hunker down before the end of March.. It has been a motel a couple of times.. There is one in Wilkes Barre that we are kind of fond of at fifteen degrees.
We may do I 10 this spring at the beginning of April. We have been to Tuscon in April for the magnificent blooming of the saguaro cacti.