Historically, windows were single glazed, with a single pane of glass, but today, there are a number of options for window glazing. Double or triple glazed windows create more insulation, making a structure more energy efficient by reducing heat loss through the windows.
The highest monthly average temperature in Charlotte for August is 79 degrees. The lowest monthly average temperature in Charlotte for January is 44 degrees. The most monthly precipitation in Charlotte occurs in June with 4.9 inches. The air quality index in Charlotte is 15% better than the national average. The pollution index in Charlotte is 171% worse than the national average.
North Carolina experiences high summer temperatures. Sometimes, cool, dry air from the north will invade North Carolina for brief periods of time, with temperatures quickly rebounding. It remains colder at high elevations, with the average summer temperature in Mount Mitchell lying at 68 Â°F (20 Â°C).now in North Carolina is seen on a regular basis in the mountains. North Carolina averages 5 inches (130 mm) of snow a year. However, this also varies greatly across the state.