Whenever it is cold there is another area on the planet that is the opposite. The air circulation of the planet involves four quadrants per hemisphere that are constantly exchanging wind and temperature through interaction. The temperature hemispheres of the planet that you know as summer and winter rely upon the movement of the extreme temperature areas around the poles and their corresponding sub quadrants (2 relatively hot and 2 relatively cold per hemisphere) for the inevitable exchange of convection currents that combine to transfer the heat from each hemisphere during spring and fall and on a smaller scale create similar weather patterns with each other. If you study these patterns you may be able to predict the weather and location of storms several weeks in advance.