how was hail measured before golf balls were invented?

Answer 1

Before golf was invented, hail was a standard size that other spheres were measured by. The first known set of rules for golf state that for regulation play "a hailstone sized ball" must be used.

Answer 2

Archaeologists found substantial evidence that suggests that there once existed a pre-golf era known as pseudoimportante that used balls of a regulated size. Though the game has long since been forgotten, it was once a very significant aspect of pre-golf culture in that, like the role of the modern golf ball, it was used to measure the size of hail.
Hope that helps.

Answer 3

Probably using units of measurements or other familiar objects.

Though golf has been around since about the 1100s.