Also take into account the humidity of where you're located.  I've seen some weird things happen to wooden crankbaits/swimbaits on various forums if left in high humidity for too long.

On 6/3/2021 at 9:55 AM, Spankey said:

That’s a first for me also. I’ve never seen that happen. Don’t think I can remember seeing one crack unless I threw it up into exposed rock. 

Just happened to me.  All my tackle was on picnic table in hot sun.  Jerks and cranks bent, split and popped open.  Surprised me, but I probably should have known better.

On 6/3/2021 at 9:23 AM, Randy Price said:

I wondered about the heat and could it cause damage to my rods so I called St. Croix and they said no.  For you bowhunters out there heat IS bad for your bows though.

THAT is truth! Bows and storage in hot conditions are not good. Can delaminate limbs and stretch strings.