April Fool's Weather

The reason why the weather changed so much today would be results of La Nina. La nina is a cooling of the ocean surface off the western coast of South America, occurring periodically every 4 to 12 years and affecting Pacific and other weather patterns.http://dictionary.reference.com/browse/La%20Nina. Also, last night there was high pressure and then this morning Low pressures set in making it cold for us. Pressures and moistures make it so that weather is cold. The more moisture there is in the air the more likely it is for there to be precipitation, and then when there is low pressures that mix with precipitation then snow can be an effect.