Yeah the temperature fluctuate, precipitation amounts very, strength of storms go up and down, the number of hurricanes very, ... The critics of the theory contend that this disproves the theory. The proponents of global warming cite the theory is describing the weird weather events. What I know is that based on my study of the theory too many years ago to mention the weird weather fits the theory. Also, if you do winter sports you can't deny that something is going on. The winters have gotten shorter. They are not as cold. With the exception of the last 2 years there is less snow.