Dirty snow melts faster than clean.
350
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
Snowiest city in the U.S. : Blue canyon, California.
112
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
9 out of 10 lightning strike victims survive!
246
Moist air holds heat better than dry air.
114