Question

If central Pennsylvania had a really dry year, and received only one-third of our usual rainfall, we would be just dry enough to be a called a desert if such dry years stayed for a long time. How much rainfall per year would we be receiving per year then? (In an average year, Pennsylvania gets about the same amount of precipitation as the average for the world.)

Answer 1

Pennsylvania would be receiving 330 millimeters or 13 inches of rainfall per year.

Step-by-step explanation:

Averaged annual precipitation in the world is 990 millimeters or 39 inches. If Pennsylvania received one third of the average precipitation, this would be 330 millimeters or 13 inches.