Posted 8/20/2015 07:26 (#4743035) Subject: last rain event
Clark SD
With this last rain event, i just had to figure out how many gallons of water fell on Clark County, SD. I had reports anywhere from 2.8 to 4 inches Using what i figured was the total acres in the county (622080 acres), 3.5 inches of rain, and 27154 gallons in an acre inch, i came up with 59,121,861,120 gallons of water.