Well it depends on what its affecting. If it's the people then the people will be more melancholy than the people with sunny weather. If it's the actual land then the gloomy rainy weather will probably make a swamp, everglades, or a marsh, while the sunny weather will make forrests, woods, or grasslands. This is a very broad question so as long as your answer makes logical sense you should be fine
If you live in a state with dark, rainy weather, it would be cold and extremely wet all the time. In a state with sunny weather, it would be hot and dry.
For a map of the mountainous area, the elevation has to be 5-100 meters. As the area is a mountain or a hilly upland area, it has a contour interval of 100 meters or more. For a relatively flat area it as to have a C.I of 10 meters or less.
The climate of any particular place is influenced by a host of interacting factors. These include latitude, elevation, nearby water, ocean currents, topography, vegetation, and prevailing winds.
