-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
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 1912 was so cold that Niagara Falls froze over.
35
Moist air holds heat better than dry air.
114
The speed of a typical raindrop is 17 miles per hour.
181
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113