Dirty snow melts faster than clean.
350
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113
The winter of 1912 was so cold that Niagara Falls froze over.
35
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
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