Way Off facts · 🌦️ Weather
The heaviest hailstone ever recorded in the US fell on Vivian, South Dakota in 2010. How much did it weigh, in grams?
879
grams
The Vivian hailstone weighed 879 grams — nearly a kilogram of ice, 20 cm across, falling out of the sky like a dropped bowling ball.SOURCENOAA / National Weather Service
Scale check: 879 is roughly a packed double-decker bus.
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