The world energy crisis and the universal interest in comfort buildings are not only leading the thriving Passive House and Nearly Zero Energy House strategies but also encouraging the development of higher performance HVAC systems and alternative energy sources for occupants and sensible energy consumption. However, household appliances have been used to control the indoor environment such as humidifiers, dehumidifiers and air cleaners are became popular, occupants have come to rely on these appliances heavily and are overusing energy on indoor environment manage easily and quickly. In addition, the intense air tightness of current residential buildings makes possible to reduce harmful outdoor conditions but has made the indoor environment isolated from the outdoors. As well, climate change due to global warming and the urban heat island effect have broken the natural bond between humans and the environment. As high-rise, air tight buildings have become the most common residential building type in South Korea, occupants in high-rise residential buildings inevitably lose the chances to have the natural environment by the change of season to feel the warm sunlights of spring and the dry leafy smell on an autumn breeze. In this sense, regional weather data was analysed to establish comfort residential building strategies that commune with nature and overcome seasonal climate hindrances. Keywords : Weather analysis, Comfort temperature band, Temperature range by regions, Mild season climate