Democratic Sentinel, Volume 16, Number 48, Rensselaer, Jasper County, 16 December 1892 — What an Inch of Rain Means. [ARTICLE]

What an Inch of Rain Means.

Few people can form a definite idea, says the St. Louis Republic, of what is involved in the expression. “An inch of rain.” It may aid such to follow this curious calculation: An acre is equal to 6,272,040 square inches: an inch deep of water on this area will be as many cubic inches of water, which at 227 to the gallon, is 22,000 gallons. This immense quantity of water will weigh 220,000 pounds, or 100 tons, One-hundredth of an inch (0.01) alone is equal to one ton of water to the acre. Massachusetts has a lower birth rate than any country of Europe except France.