The best temperature to set your AC will vary, depending on the situation, but typically falls between 68 and 79 degrees Fahrenheit. Different recommendations for temperature settings will depend on several factors, such as the temperature outdoors, the humidity level, and personal comfort level and goals.
The Best AC Temperature for Summer
Summers in North Carolina can be humid and hot, so you’ll want to start with a temperature setting around 78 degrees and adjust from there. During the summer, you should set your thermostat to a comfortable temperature for you and your family that still provides humidity control. Operating your thermostat efficiently is the best way to stay comfortable during the summer and save on your energy bill, but this can look different for every household.
The Best AC Temperature to Prevent Mold
Air conditioning units act as humidity balancers. Maintaining proper humidity can help prevent mold growth. However, HVAC units cannot prevent mold that has already formed from continuing to grow. The following are the recommended AC temperature and humidity settings (if the model also contains a de-humidifier) by the North Carolina Department of Health and Human Services for maintaining indoor air quality.
- In the winter months (November to February): 68 to 76 degrees F
- In the summer months (March to October): 74 to 79 degrees F
- Humidity levels between 30 and 60 percent
The Best AC Temperature for Energy Savings
The best AC temperature for a low electricity bill will be the closest to the outside temperature while still allowing your family to stay comfortable. The closer you keep the thermostat set to match what’s going on outdoors, the less energy it uses. The less energy used, the lower your electricity bill will be.
You can also think about the times you’re not home. The Department of Energy reports that you can save as much as 10 percent annually on cooling and heating bills by setting your thermostat back 7 to 10 degrees for 8 hours a day from its typical setting.
HVAC Maintenance Reminders for Maintaining the Right Temperature
It’s essential to keep your HVAC unit in working order. An annual maintenance check is one of the best ways to do this. This can help the unit continue to function at its best. You’ll also want to keep your air filter in mind. These should be changed at least every six months.