At What Temperature Should a Thermostat Be Kept At During Summer in Arizona?

Free AC Repair Service Call with Repair Gilbert AZ

None Compare to Dukes of Air.

Balance comfort with energy costs by raising and then lowering your thermostat before leaving home, then shortly before coming home again. Doing this reduces strain on the AC unit.

Thermostat Settings

Most utility companies suggest setting your thermostat between 78 and 80 degrees during summer months for maximum energy efficiency and comfort in your home. Doing this not only provides optimal home comfort but can also save energy as too high of a thermostat setting will cause your HVAC system to work harder to cool the house down. In addition to setting their thermostat correctly, Phoenix residents can utilize other energy saving strategies in order to optimize their HVAC systems further.

For instance, energy-efficient ceiling fans allow you to keep air moving around the home more freely while also saving electricity. Furthermore, opening windows helps limit solar radiation and other sources of heat entering the house, and smart thermostats help homeowners save even more by automatically recognizing when everyone leaves and adjusting accordingly.

Figuring out the ideal thermostat settings for your home can be challenging – particularly when your family has various schedules and preferences. But gradual adjustments over time will help you arrive at a set that meets everyone’s needs without shocking your system with sudden temperature shifts.

Many people like to reduce cooling costs by setting their thermostat lower at night, which will result in reduced cooling costs. Unfortunately, doing this can cause the temperature to drop too low and disrupt sleep cycles. Instead, set your thermostat at a level which will keep all occupants comfortable – for instance if you typically go to sleep around 7 p.m. then 82 degrees should do.

Switch your thermostat up by four to five degrees when leaving for extended periods, as this will prevent your HVAC system from having to work so hard when returning home and could save up to 10% on energy bills in summer months.

Heating in Arizona

When living in a home that features both heating and cooling functions, it’s essential that the temperature settings for the heating system should be lower than those for air conditioning systems; heating requires significantly more energy than cooling functions do.

Programmable thermostats come in handy because they allow you to set various temperatures for each system, making your heating more comfortable while saving on electricity with air conditioning.

Daytime temperatures for your Phoenix, Tempe, Mesa or Tucson area home should range between 78 and 85 degrees for optimal comfort for yourself and any pets you might own. A warmer setting is advised for their wellbeing. To protect the HVAC system against overwork while protecting against frozen pipes during extended trips abroad.

At night time and during cooler times of year, it is wise to set your house’s temperature between 68-71 degrees. This provides comfort without overheating your energy bills while saving on costs overall.

Summer temperatures require you to turn up the thermostat a few degrees higher than the recommended setting if you want to reduce energy bills, according to some experts. One degree higher can save 3% on energy costs.

As mentioned above, these temperatures may seem extreme to some Phoenix valley residents; however, it’s perfectly feasible to live comfortably at this temperature setting during the summer with window treatments providing extra insulation and saving on energy costs. Furthermore, gradual adjustments are usually better as this does not shock your body into making sudden and dramatic temperature shifts that might upset its natural thermostat system.

The U.S. Department of Energy (DOE) recommends setting your thermostat to 78 degrees Fahrenheit during the summer in Arizona. This is a good compromise between staying comfortable and saving energy. If you find that 78 degrees is too hot, you can try raising it by a few degrees. However, it is important to avoid setting your thermostat too low, as this can put unnecessary strain on your air conditioner and increase your energy bills.

Here are some additional tips for setting your thermostat in Arizona during the summer:

  • Use a programmable thermostat. This will allow you to set different temperatures for different times of the day. For example, you can set the thermostat to a higher temperature during the day when you are at work and a lower temperature at night when you are sleeping.
  • Close your blinds and curtains during the day. This will help to keep the sun’s heat out of your home.
  • Use fans. Fans can help to circulate the air in your home and make you feel cooler.
  • Get an energy audit. An energy audit can help you identify areas where you can improve your home’s energy efficiency. This can help you save money on your energy bills and reduce your carbon footprint.

By following these tips, you can help to keep your home cool and comfortable during the summer in Arizona without breaking the bank.


A thermostat is the heart of any air conditioning system in your home. It works by measuring the indoor air temperature and comparing it with your desired preset setting; if either temperature falls outside your desired range, a signal is sent to both furnace and air conditioner units in order to adjust accordingly until closer to its desired set point temperature is reached.

Thermostats serve many functions, but their primary function is to monitor room temperatures and switch on heating or cooling systems as needed. Some thermostats also serve to protect against freezing temperatures by featuring an antifreeze heat anticipator that shuts off heating when room temperatures become too cold to activate its heaters.

Most modern thermostats are electronic or digital; older mechanical thermostats utilize mercury switches and thermometers. With mechanical thermostats, temperature can be measured by tilting an old mercury thermometer left or right as temperature fluctuates; when that occurs, its switch activates inside of its cover and switches the system on or off accordingly.

Modern thermostats work in much the same way, though modern versions utilize an internal component called a thermistor which measures electrical current resistance passing through it and sends readings back to the thermostat which uses them to determine actual indoor air temperatures versus those preprogrammed in your account. If any differences arise between actual temperatures and preprogrammed ones, your heating or cooling system may activate to adjust it accordingly and reach your preferred setting.

To ensure an accurate reading, it’s essential that a thermostat be placed away from direct sunlight and in an area with adequate ventilation, avoiding doors and windows as well as air vents – this way the device will capture an average reading of the entire room rather than simply reading from one spot – something which becomes especially critical if living in a large house with multiple thermostats installed.

At what temperature should a thermostat be kept at during summer in Arizona

Humidity in Mesa, Arizona

Arizona is known for its scorching climate, making summer temperatures in Phoenix frequently exceed 110 degrees Fahrenheit.

Arizona’s heat is intense due to various factors. One is its proximity to the equator; another factor is elevation: those living at lower elevations tend to feel its effects less strongly than those at higher altitudes.

Humidity can make the temperature seem hotter than it actually is, making you sweat more than necessary. It is important to understand the differences between relative and absolute humidity; relative humidity measures how much water vapor there is present in the air relative to how much capacity there is in that particular temperature zone for it to hold; absolute humidity refers to how much vapor stays buried beneath the surface at any given moment in time.

At 100% relative humidity, air is saturated with water vapor; however, that does not indicate precipitation will happen immediately. Temperature must drop for the water vapor to condense into water droplets that will eventually fall nearer to earth as dew or fog; higher in the sky they’ll form clouds.

Maintaining optimal humidity levels in your home is critical to avoiding mold growth and other issues. Modern thermostats typically measure both the temperature and humidity simultaneously; if yours doesn’t, there are affordable humidity monitors available that you can purchase to do the trick.

Simply opening some windows and turning on ceiling fans can also help reduce humidity, while simultaneously decreasing room temperatures. Running a humidifier to add moisture back into the air should also help, though please use it sparingly and with caution as too much humidity can lead to mold or other complications; additionally, humidifiers only work effectively if outdoor air is dryer than interior air.

Share This Post!