Not strange about the melanoma rate at all. One big risk factor for melanoma is low vitamin D levels.
I’ve had 2 melanomas - both caught really early. I now take over 5k Vit D3 a day...among a ton of other stuff. My friend in FL has laid in the sun all her life and yes, some leathery skin but no skin or any other cancer.
Mostly I’m in Oregon - in an office.