Cold enough for you?
Here are some interesting facts about winter weather.
WaterFreeze - Shallow areas of a body of water freeze before deeper areas. The deeper the water, the longer it takes to change its temperature. Water reaches its densest state at 39 degrees F. (4 degrees C).
IceCloud - In winter, low temperatures and water vapor in the usually cloudless stratosphere trigger the formation of ice clouds.
LightRays - Although the ...