* Hailstorms, though destructive in nature are a form of precipitation, like snow and rain, and are hence unavoidable.
 

* The ice ball that falls down from the sky with a great force, during a hailstorm, is known as a 'hailstone'. An average 'hailstone' can have any diameter between 5 to 150 millimeters.
 

* The hailstorms are not exactly storms, but are a side effect of a much bigger storm, the thunderstorm. In fact, hailstorms originate from thunderclouds.
 

* The hail originates from thunderclouds that are also known as Cumulonimbus clouds.
 

* Weather forecast agencies and departments, newspapers, TV channels and other media organizations, do not refer to the actual size of a hailstones in millimeters, while reporting the severity of a hailstorm. The objects of comparison that are often used are, coins like, cents, dimes or dollars. Some other objects also include marbles, golf balls and peas. For Example: Last night's hailstorm, was not very severe and the size of hail was equivalent to that of a 'pea'.
 

* One of the most sever and dangerous hailstorms that occurred in the modern times fell on the night of 7th of July, 2009, in a suburb of New York, known as Yonkers. The storm left behind a two inches thick layer of snow and caused a flash flood and also one mud slide.
 

* The largest of all hailstorms was recorded in Aurora, Nebraska, United States in 2003.
 

* Another very big hailstorm occurred early in the 9th century, in Roopkund, India. It is supposed to be one of the earliest officially recorded hailstorms.
 

* In Colorado, United States, the citizens have a 'hailstorm season', that lasts from March to October, every year.
 

* Hailstorms have rarely lasted for more than 15 minutes. The median of the time span of these storms is about 6 minutes.
 

* According to the climate departments of governments all over the world, hailstones must have at least ¾ inch of diameter to become severe, and cause a substantial amount of damage.
 

* Hailstorms usually occur mostly in mountainous regions than the regions with a lower temperature.

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