I dont now
Average precipitation is around 44 inches annually.
Seattle receives an average annual precipitation of around 38 inches.
Hawaii.
The average amount of precipitation in tundra environments typically ranges from 6 to 10 inches (15 to 25 cm) per year. Tundras are characterized by cold temperatures and a short growing season, so the amount of precipitation is usually low.
Oahu is highly variable as far as rainfall goes. Its northwestern end is often dry and has an average annual rainfall of about 20 inches, while the wetter central to eastern area has average yearly rainfalls up to 154 inches.
The average yearly precipitation will depend on location. This includes the amount of rainfall in inches throughout the United States. Drier states and regions will have less precipitation than coastal areas.
africa
With an average of over 472 inches or 39 feet (12 meters) of precipitation each year, Mt. Waialeale on Hawaii's Kauai Island is the rainiest and wettest spot on the planet.
Every desert has different climate statistics but, in general, a desert receives from 0 to 10 inches (250 mm) of precipitation on average per year.
Precipitation in Antarctica -- on average -- is no more than an inch or two each year..
I think the total amount for precipitation is 382,000km
That's what we humans call the "Water Cycle"