science · 23 July 2010 · 15 years ago
In 2010, the world's record heaviest hailstone fell in Vivian, South Dakota weighing 1-lb 15-oz, (0.88 kg) and size 8.0-in (20 cm) diam., 18.6-in (47.3 cm) circumference. It broke the former U.S. record set on 3 Sep 1970 in Coffeyville, Kansas, weight 1-lb 11-oz (0.77 kg) with 5.7-in (14.7 cm) diameter. The U.S. record for circumference still held from the 22 Jun 2003 hailstorm in Aurora, Nebraska, when a hailstone was found about 7-in (17.8 cm) diam. and 18.75-in (46.6 cm) circumference. A larger hailstone is said to have fallen on 14 Apr 1986 that weighed 2-lb 4-oz (1.02 kg) during a hailstorm in Bangladesh that killed 92 people.
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