Dirty snow melts faster than clean.
350
Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
442
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96