Your Daily Facts about Rain
One inch of rain equals:
Per Square Yard – 4.7 gallons of Water (21.37 liters)
Per Acre – 22,651 gallons (102,971 liters) of water weighing 102.7 tons.
Per Hectare (11,960 sq yd or 2.47 acres) – 55,971 gallons (254,441 liters) of water weighing 253.7 tons.
Per Square Mile – 14.5 million gallons of water.
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The world’s heaviest average rain fall (about 430 inches) occurs in Cherrapunji, India, where as much as 87 feet of rain has fallen in one year.
Mt. Waialeale in Kauai, Hawaii, has up to 350 rainy days every year.
The wettest state in the United States is Louisiana, with annual rainfall of 56 inches.
Rainfall is classified as light if not more than 0.10 inch per hour, and heavy if more than 0.30 inch per hour.
All precipitation starts as ice or snow crystals at cloud level.
The umbrella was originally intended for shade from the hot Egyptian sun.
Raindrops vary in size from 0.02 inch to about .031 inch diameter.
Big, heavy raindrops can fall at speeds up to 22 miles per hour!