1. Sunlight does not fall equally in all cities because the higher latitudes receive less because of the shallower angle. The sunlight is also less for places with greater cloud cover.
2. Hot water and air travels on the jet streams which takes them to other altitudes and warms the area.
3. Precipitatioon, temperature, wind speed, wind direction, and humidity change throughout the year because of el nino and la nina and because the seasons change. Humidity is when hot temperature makes water evaporate and mix with vaporized atmosphere. Precipitation comes from water evaporating, forming into clouds and then raining. Wind blows around London becuase of uneven heating.
4. If a mountian (elavation) is in the way of a wind curent it will cause the air on the other side to get colder than the other side. Topography determines were wind and other aspects of climate will go. If an area is near water it will moderate the climate.