Why the climate of continental interiors is of comparatively extreme type?

The climate of continental interiors is typically more extreme due to their distance from large bodies of water, which moderate temperature fluctuations. Without the influence of oceans, these regions experience hotter summers and colder winters, resulting in a wider temperature range. Additionally, the lack of moisture from nearby water sources leads to lower humidity levels and less precipitation, contributing to arid or semi-arid conditions. These factors combined create the distinct and extreme climate characteristics of continental interiors.