Dirty snow melts faster than clean.
350
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113
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
Contrary to popular belief, lightning travels from the ground upwards not from the sky downwards.
101