Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
Oak trees are struck by lightning more than any other tree.
266
Contrary to popular belief, lightning travels from the ground upwards not from the sky downwards.
101
Rain contains vitamin B12.
188
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
The speed of a typical raindrop is 17 miles per hour.
181