Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
The winter of 1912 was so cold that Niagara Falls froze over.
35
Moist air holds heat better than dry air.
114
There is enough energy in one bolt of lightning to power a home for two weeks!
102
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
The speed of a typical raindrop is 17 miles per hour.
181
The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
442