Summer Thermostat Temperature

DID YOU KNOW?

The first air conditioning units were designed and installed in 1902 for humidity control — not comfort. [2] Today, AC is a summertime staple — but how we use it affects both our wallets and the planet.

STAY INFORMED

  • Heating and cooling account for about 50% of energy use in most U.S. homes, making temperature control one of the biggest drivers of utility bills. [1]
  • You can save up to 10% a year on heating and cooling costs by adjusting your thermostat 7°–10°F for 8 hours a day. [1]
  • The smaller the difference between indoor and outdoor temperatures, the lower your cooling bill. [1]

HELPFUL TIPS

1. Set It to 78°F When You’re Home

  • 78°F is the recommended summer setting when you're indoors and need cooling. This balances comfort with energy efficiency.

2. Supplement with Ceiling Fans

  • If 78°F feels too warm, use ceiling fans to circulate air. Fans don’t lower temperature, but they make you feel cooler. [1]

3. Don’t Forget to Turn Off Fans

  • Fans cool people, not rooms. Turn them off when you leave to avoid wasting electricity. [1]

ENERGY SAVINGS REMINDER

Your thermostat is a powerful tool for saving energy and money. Set it wisely, combine it with fans, and enjoy a cooler summer that’s easier on the planet.

REFERENCES

  1. Energy.gov – Programmable Thermostats
  2. Wikipedia – Air Conditioning

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