According to a suggestion from Energy Star, which is a federal program managed jointly by the Department of Energy and the Environmental Protection Agency, we should keep the temperatures of our homes at a minimum of 78 degrees when home, 82 degrees when sleeping and 85 degrees when away from home.
Yeah right! In my home it’s 68 degrees in the summer, 68 degrees at night when I’m sleeping, and even when I’m away from home (so it’s cold when I return). I can assure you 75-85 degrees in my home, anytime, would not make me very happy at all.
To be clear, only a few states have a Summer temperature averaging higher than 80 degrees. According to NOAA National Climatic Data, the states with the hottest average summer temperature average only 81.1 degrees. This means that Energy Star is essentially recommending people just do not use air conditioning in the summer, even in the hottest states like Texas and Louisiana.