When summer heat rolls into Wheeling, IL, it’s common to hear the steady hum of air conditioners running throughout the neighborhood. But how much is too much? It varies based on weather, humidity, the efficiency of your system, and even where you live.
Ravinia Plumbing, Sewer, Heating & Electric shares what’s normal for air conditioning in Wheeling, how local climate conditions impact your system, and what that means for your summer electric bill. You’ll also find tips to help your air conditioner work smarter—not harder—so you can stay cool without overpaying. Let’s dive into the facts and take the guesswork out of your AC’s summer schedule.
What’s Normal for Air Conditioning in Wheeling?
For context, air conditioning in Wheeling deals with July highs of around 84°F and average daily temperatures in the low 70s. These temperatures are slightly cooler than places farther south, but warmer than areas closer to Lake Michigan that benefit from lake breezes.
Humidity in Wheeling can also push ACs to work harder. Summer dew points often hover in the 60–70°F range, which means sticky, heavy air. That moisture requires extra cooling power for dehumidification, which increases HVAC system runtime.
In summer, it’s completely normal for your cooling system to run 8 to 14 hours per day, especially during heatwaves. When outdoor temperatures spike, your AC may even cycle for longer periods with shorter breaks, or run almost continuously, just to keep up. When it’s 70°F and low humidity, your AC might only need to run for 15–20 minutes every hour. But when it’s in the 80s with 70% humidity, your system may run almost nonstop for hours.
How Air Conditioner Runtime Affects Your Electric Bill
Air conditioning accounts for 19% of annual electricity use in the average U.S. home. And with air conditioners only running a few months out of the year, you’ll notice it impacting your summer energy bills, no matter if your AC only runs a few hours a day, or quite often.
But the longer your air conditioner runs, the more electricity it consumes. In Wheeling, cooling costs can account for 35–60% of your summer electric bill if you’re not careful. That’s why it’s really important to pay attention to signs of heating and air conditioning issues—addressing them right away with AC repair instead of letting them linger all season could save you big time.
How Air Conditioner Efficiency Affects Runtime
If you’ve had the same AC unit for 15+ years, chances are it’s less efficient and runs longer than necessary. Newer models cool faster and cycle off sooner. Older units have lost a lot of efficiency over the years, and they likely had lower SEER levels at their time of installation, versus newer units.
Many newer air conditioners also have two-stage or variable-speed compressors, which adjust how hard they work based on conditions. These systems may run longer at lower speeds, but they actually use less energy overall and offer more consistent comfort.
If you have an older unit and you’re concerned about rising energy bills, it’s probably time to consider air conditioning installation services. Upgrading to a modern, energy-efficient system can dramatically reduce your AC’s runtime and lower your monthly utility costs, which is a worthwhile investment for your Wheeling home.
System Issues That Could Be Causing Your AC to Run Too Long
Sometimes, an air conditioner running for hours on end isn’t just a reaction to outdoor heat—it could be a sign that something’s wrong. If your AC seems to never stop running, even on milder days, there may be underlying issues in the system that are reducing its performance and driving up your energy costs.
Here are some of the most common problems that cause air conditioning in Wheeling homes to run longer than necessary:
Low Refrigerant Levels
If your system is low on refrigerant due to a leak or poor installation, it can’t absorb and remove heat from your home effectively. This leads to prolonged run times, poor cooling, and eventually, serious system damage if not addressed. If you notice warm air or hissing sounds from the equipment, call for cooling services right away.
Undersized Air Conditioner
An AC unit that’s too small for your home will struggle to meet demand, especially during hot and humid Wheeling summers. It may run constantly without ever truly cooling the house. A professional load calculation is the only way to know whether your system is properly sized for your space.
Leaky or Poorly Insulated Ductwork
Even if your air conditioner or heating system is in great shape, leaky ducts can sabotage efficiency all year long. Conditioned air can escape into your attic or crawlspaces, forcing the system to run longer just to maintain the desired temperature indoors. Poor insulation also contributes to energy loss, making your system work harder than it should.
Malfunctioning Thermostat
Sometimes, it’s not your air conditioner—it’s your thermostat. A faulty or miscalibrated thermostat may fail to communicate with your system correctly, causing the AC to run too often or for too long. Replacing an outdated thermostat with a programmable or smart model can offer both comfort and control.
Dirty Condenser Coils
In an air conditioner or heat pump system, the outdoor condenser unit releases heat transferred from inside the home. If the coils are coated in dirt, pollen, or debris, the heat exchange process slows down dramatically. This causes your system to lose efficiency and stay on much longer to cool your home. A professional cleaning during annual maintenance can resolve this quickly.
Aging Components or Wear and Tear
Older systems naturally lose efficiency as parts wear down. Fan motors, capacitors, and compressors may not function like they used to, resulting in decreased performance and longer runtimes. If your system is 12–15 years old and showing signs of strain, it may be time to consider a replacement.
Is It Time to Call Your HVAC Company for Help?
If your AC is running more than usual and your home still isn’t comfortable, it’s worth having a professional HVAC technician inspect your system. Ravinia Plumbing helps customers in Wheeling uncover hidden system issues and restore optimal performance, often saving money on energy bills in the process.
Let us help you figure out if your system just needs a little TLC or if it’s time to start thinking about an upgrade.
Tips to Reduce Your Air Conditioner’s Workload
You don’t have to suffer through the heat to cut your AC runtime. With a few simple changes, you can keep your home cool and give your system a break:
1. Use Energy-Smart Thermostat Settings
Set the temperature higher when you’re away or asleep. Aim for:
- 78°F when home
- 85°F when away
Every degree you raise your thermostat can cut energy use by 3–5%.
2. Seal Leaks and Improve Insulation
Air leaks around doors, windows, and ductwork make your entire system work harder. Proper insulation and sealing keep cool air in and hot air out.
3. Keep Vents and Air Filters Clean
Clogged filters and blocked vents reduce airflow and force your system to run longer. Replace filters every 1–3 months. During the peak of summer, you may need to change filters monthly to keep your HVAC system running efficiently.
4. Close Curtains and Blinds
Sunlight heats up your home fast. Use thermal curtains or blackout shades during the day to block heat.
5. Run Ceiling Fans
Fans don’t cool the air, but they help you feel cooler. That means you can raise your thermostat a few degrees without feeling the difference.
6. Schedule Routine Maintenance
Regular maintenance from a reliable HVAC services provider keeps your system clean, properly charged, and running at peak performance. That can reduce energy use by 15% or more.
Stay Cool, Save More: Make Your AC Work Smarter in Wheeling
There’s no single “perfect” number of hours your AC should run in Wheeling, IL. But by understanding local weather conditions, monitoring your energy use, and taking steps to improve efficiency, you can stay cool and save money all summer long.
If you’re concerned about how much your air conditioner runs or your energy bills are through the roof, reach out to Ravinia Plumbing for air conditioning services in Wheeling, IL. We’re here to help you make smart decisions about your comfort and efficiency.