There are quite a lot of factor that combine together to determine the shape of the weather. These factors include temperature, topography, elevation (altitude), abundance of water, air pressure, latitude and solar radiation. Let's discuss about these factors one by one:
Temperature: the higher the temperature the hotter the climate of the region and the lower the temperature, the colder the region.
Elevation (altitude): higher elevations are associated with lower temperatures which there are relatively colder and vice versa.
Abundance of water: the presence of bodies of water impact the shape of climate of the region. Regions close to large bodies of water are relatively colder than regions far from bodies of water.
Latitude - where you are on earth determines the weather of the place. For instance, regions away from the equator have more or less of sunlight depending on the season.