I never dry ANY woods for years on purpose. I reduce staves, clamp them and let them dry, or they just sit around until I get to that point.
I live in Utah, and it's dry here, too, but I have never had juniper check like that, so I'm curious as to why, too. If you tried to dry a very large piece, like 5" log or something, I could see it.
One other thing that is funny here, is that drying wood is a subject which is discussed almost daily on this site, and one couldn't go back much more than a page before finding a thread about it. So, I'm surprised you hadn't already read (in other threads) that most of us reduce our staves to dry, especially sapling and branch staves, OR that any wood will check if dried too quickly and left too large, OR, that large staves which are not reduced should be sealed. Those are cardinal rules, revisited regularly.