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Köppen climate types of Virginia, using 1991-2020 climate normals Due to the elevation, the Blue Ridge Mountains have a humid continental climate.. The climate of Virginia, a state on the east coast of the United States, is mild compared to more northern areas of the United States such as New England and the Midwest.
It is a model code adopted by many states and municipal governments in the United States for the establishment of minimum design and construction requirements for energy efficiency. [1] [2] The code is updated every 3 years, to provide an ongoing standard of best practices for energy efficiency. [3]
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All thermal insulation requirements in ASHRAE 90.1 are divided by the climate zone, it means that the amount of insulation needed for a building is determined by which climate zone the building locates. The thermal insulation requirements are shown as R-value and continuous insulation R-value as the second index. [13]
The Köppen climate classification system was modified further within the Trewartha climate classification system in 1966 (revised in 1980). The Trewartha system sought to create a more refined middle latitude climate zone, which was one of the criticisms of the Köppen system (the climate group C was too general). [10]: 200–1
The climate maps for Bean Station, Tennessee, warn of an extreme air pollution risk for the community. The number of unhealthy air days in a bad year will increase by 2% over the next 30 years.
The climate of Virginia varies according to location, and becomes increasingly warmer and humid farther south and east. [19] Most of the state has a humid subtropical climate, from the Blue Ridge Mountains and southern Shenandoah Valley to the Atlantic coast. In the Blue Ridge Mountains, the climate becomes subtropical highland. [citation needed]
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