According to The American Melanoma Foundation:

Skin cancer is the most common cancer in the United States

Current estimates are that one in five Americans will develop skin cancer in their lifetime.

Melanoma is the second most common form of cancer in females age 15-29.
On average, one American dies from melanoma every hour.  In 2017, it is estimated that 9,730 deaths will be attributed to melanoma — 6,380 men and 3,350 women.
World Health Organization estimates that more than 65,000 people a year worldwide die from melanoma.
Avoiding this risk factor alone could prevent more than 5 million cases of skin cancer every year.
Experiencing five or more blistering sunburns between ages 15 and 20 increases one’s melanoma risk by 80 percent and non-melanoma skin cancer risk by 68 percent.
Even one blistering sunburn during childhood or adolescence can nearly double a person's chance of developing melanoma.
Because exposure to UV light is the most preventable risk factor for all skin cancers, the American Academy of Dermatology encourages everyone to protect their skin from the sun’s harmful UV rays by seeking shade, wearing protective clothing and using a sunscreen with a Sun Protection Factor of 30 or higher.
Because severe sunburns during childhood may increase one’s risk of melanoma, children should be especially protected from the sun.