Return to Daily IQ Today's Weather Fact On this day in 2003, the largest hailstone in U.S. history was discovered in Aurora, Nebraska. It measured 7 inches (17.8 cm) in diameter, and 18.75 inches in circumference. Other Weather Facts Select month and date: JanFebMarAprMayJunJulAugSepOctNovDec Related LinksWeather CentralWeather DisastersWeather ExtremesClimateTornado FactsMajor Storms