TOPIC: high moisture in drywall at top of windows

I noticed high moisture readings on drywall at the tops of interior windows of a 10 year old unoccupied house in humid Gulf coast. Good condition overall. mild temperature 65-75 ambient with similar outside weather. Humidity levels in home average to low for our humid conditions.
Readings 35-75+ while every where else is 0. Is this due to flashing or different materials around window tops and corresponding condensation?

Insight appreciated.

Yes! You moisture meter reads reflectivity.
Try it at your home . If you have drywall walls the corner bead around the windows will give you a false moisture reading.

Awesome! Thank you Roy1!