The Best Thermostat Settings for Summer: Save Money Without Sacrificing Comfort

Every Arizona summer brings the same challenge: staying comfortable without watching your energy bills skyrocket.

When temperatures climb into the triple digits, it's tempting to keep lowering the thermostat in search of relief. But many homeowners are surprised to learn that setting the thermostat lower doesn't always make the home feel better, and it can make your air conditioner work much harder than necessary.

At A & A Cooling & Heating, we've been helping homeowners across the Phoenix Valley stay comfortable since 1976. One of the most common questions we hear every summer is, "What should I set my thermostat to?"

The answer depends on whether you're home, away, or sleeping, but it's also about understanding how your cooling system works and how to get the most from it.

Finding the Right Temperature During the Day

For most homeowners, 78°F is a good starting point when you're home during the day.

That temperature often provides a comfortable balance between keeping the house cool and keeping energy use under control. It also helps prevent your air conditioner from running longer than necessary during the hottest parts of the day.

Of course, comfort is personal. Some families prefer a cooler home, while others are perfectly comfortable a few degrees warmer.

Every home is different. What matters most is finding a setting that keeps your family comfortable without driving up energy use or overworking your air conditioner.

Why Lower Isn't Always Better

One of the biggest misconceptions about air conditioning is that lowering the thermostat dramatically will cool the house faster.

If your home is 85°F and you set the thermostat to 65°F, your AC won't suddenly work faster. It will simply continue running until it reaches the lower setting.

In many cases, this leads to:

●    Longer run times

●    Higher energy bills

●    More wear and tear on the system

Instead of cranking the thermostat down, set it to the temperature you actually want and allow the system to do its job. Your air conditioner is designed to cool at a steady rate, not cool faster because the thermostat is set lower.

What Should You Set It To When You're Away?

If nobody is home during the day, there's usually no reason to cool the house to the same temperature you would when you're there.

Many homeowners find that setting the thermostat between 82°F and 85°F while away helps reduce cooling costs without making the house uncomfortable when they return.

If you have a programmable or smart thermostat, you can automate these adjustments so your home starts cooling again before you get back.

Small changes like this can make a noticeable difference over the course of a long Arizona summer.

Finding a Comfortable Temperature for Sleeping

Nighttime comfort tends to be different for everyone.

Most homeowners find that somewhere between 74°F and 78°F provides a comfortable sleeping environment,depending on personal preference, bedding, ceiling fan use, and the layout of the home.

Rather than making drastic temperature changes at night, try adjusting the thermostat gradually until you find what works best for your household.

A ceiling fan can also help improve comfort while sleeping by keeping air moving throughout the room.

Consistency Often Works Better Than Constant Adjustments

Many people adjust the thermostat multiple times throughout the day, trying to stay comfortable as outdoor temperatures change.

While occasional adjustments are perfectly fine, constantly raising and lowering the temperature can sometimes make your system work harder than necessary.

A more consistent approach often allows your AC to maintain comfort more efficiently. Once you find settings that work well for your schedule, try sticking with them for a few days and see how your home feels.

Your Home Affects Comfort More Than You Think

The thermostat isn't the only thing that determines how comfortable your home feels.

Arizona sunshine can add a tremendous amount of heat throughout the day, especially through windows and doors.

A few simple habits can help reduce that heat gain:

●    Keep blinds and curtains closed during the hottest hours

●    Use blackout curtains in rooms with heavy sun exposure

●    Seal gaps around doors and windows

●    Replace air filters regularly

●    Use ceiling fans to improve air circulation

These small changes help your air conditioner work more efficiently and can reduce the need for frequent thermostat adjustments.

If You're Always Adjusting the Thermostat, There May Be Another Problem

If you're constantly lowering the thermostat but still don't feel comfortable, the issue may not be the setting itself.

We often visit homes where the real problem is:

●    Dirty air filters

●    Restricted airflow

●    Leaky duct work

●    Aging equipment

●    Uneven cooling throughout the home

In these situations, adjusting the thermostat won't solve the underlying issue. A professional inspection can help determine whether your system is operating as efficiently as it should.

There Isn't One Perfect Temperature

Many homeowners want a single thermostat setting that guarantees comfort and low energy bills. The reality is that every home and every family is different.

The temperatures we recommend are simply a starting point. Factors like insulation, sun exposure, ceiling fan use, and personal comfort preferences all play a role in finding what works best for your household.

The most effective approach is to make small adjustments, pay attention to how your home feels, and find a balance between comfort and efficiency that works for your family.

Why Homeowners Choose A & A Cooling & Heating

Since 1976, homeowners throughout Apache Junction, Chandler, Peoria, and the surrounding Phoenix Valley have trusted A& A Cooling & Heating for honest advice and dependable HVAC service.

We believe in straightforward recommendations, reliable workmanship, and helping homeowners make informed decisions about their comfort.

Whether you need maintenance, repairs, or simply have questions about how to get the most from your cooling system, ourteam is here to help.

Stay Comfortable All Summer Long

Finding the right thermostat setting is only one part of staying comfortable during an Arizona summer. A well-maintained HVAC system, good airflow, and a few smart habits can make a significant difference in both comfort and energy costs.

If your home never seems comfortable, your energy bills keep climbing, or your air conditioner is struggling to keep up with the heat, contact A & A Cooling & Heating or schedule service online. We'll help you find practical solutions that keep your home comfortable all summer long.