Dirty snow melts faster than clean.
350
Snowiest city in the U.S. : Blue canyon, California.
112
Moist air holds heat better than dry air.
114
The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
442
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21