If you live in Iowa, you already know:
Winters are cold
Summers are humid
Spring and fall are unpredictable
That means your thermostat isn’t just about comfort — it’s about managing constant change.
Set it wrong, and you’ll notice:
Higher energy bills
Rooms that feel too hot or too cold
A system that works harder than it should
Set it right:
Your home feels consistent
Your system runs efficiently
Your energy costs stay under control
The “Best” Thermostat Setting
Here’s the simple baseline most experts agree on:
Winter
68°F when you’re home
60–65°F when sleeping or away
Summer
78°F when you’re home
Higher when you’re away
These settings balance comfort, energy efficiency, and system performance.
But in Iowa, there’s a little more nuance.
Best Thermostat Settings for Iowa Winters
Iowa winters are long and dry.
Recommended Settings:
Daytime (home): 68–70°F
Night: 60–65°F
Away: 58–62°F
Why this works:
Keeps your home comfortable without overheating
Reduces energy usage while you sleep or leave
Prevents your system from running constantly
Lowering your thermostat for part of the day can significantly reduce energy costs over time.
Best Thermostat Settings for Iowa Summers
Iowa summers are humid, and humidity changes how your home feels.
Recommended Settings:
Daytime: around 78°F
Night: slightly lower if needed
Away: higher to save energy
Why 78°F works:
Keeps cooling costs manageable
Maintains comfort without overworking your system
Helps control humidity when paired with a properly running AC
If your home feels uncomfortable even at lower temperatures, humidity is likely the issue.
What About Spring and Fall?
Iowa’s shoulder seasons are inconsistent, and your thermostat should reflect that.
Some days you’ll need heat.
Other days you’ll need AC.
That’s why timing matters.
If you’re unsure when to switch from heat to cooling, check out our post that tells you when the best time is to turn on your AC.
This helps you avoid turning your AC on too early or waiting too long and becoming uncomfortable.
The Missing Piece: Humidity
Temperature is only part of the equation.
Humidity plays a major role in comfort.
Ideal Indoor Humidity:
30–50% year-round
Why it matters:
Too dry (common in winter): dry skin, static, discomfort
Too humid (common in summer): sticky air, discomfort, potential mold growth
Two homes at the same temperature can feel completely different depending on humidity levels.
A Smarter Way to Set Your Thermostat
Instead of picking one number and leaving it there, use a schedule-based approach.
During the Day
Set for comfort (68 winter / 78 summer)
When You Leave
Adjust by 5–10 degrees
At Night
Slightly cooler for better sleep
This keeps your system efficient without constant manual adjustments.
Common Thermostat Mistakes (That Cost You Money)
1. Constantly Adjusting the Temperature
Lowering the temperature drastically does not cool your home faster.
2. Turning It Off Completely
This forces your system to work harder when you turn it back on.
3. Ignoring Maintenance
A poorly maintained system will not perform efficiently regardless of your settings.
Click here to learn how to have an efficient system year-round.
When Thermostat Settings Aren’t the Real Problem
If your home still feels uncomfortable, the issue may not be your thermostat.
Possible causes include:
Poor airflow
Dirty filters
Aging equipment
Uneven heating or cooling
In these cases, it may be time to review your system.
Iowa Homes Are Different (And That Matters)
Every home responds differently based on:
Insulation
Window quality
Age of the home
Layout
What works for one home may not work for another.
If you’re in Central Iowa and want local support, give us a call today.
So… What’s the Best Thermostat Setting for Your Home?
Start with:
68°F in winter
78°F in summer
Then:
Adjust slightly for comfort
Use a schedule instead of constant changes
Monitor humidity
Ensure your system is operating properly
The goal is not just temperature.
It’s consistent comfort throughout your home.
Make Your Home Comfortable Year-Round
If your thermostat feels like a constant adjustment, there may be a deeper issue.
Anthem Heating & Cooling helps Iowa homeowners:
Improve system efficiency
Balance comfort and cost
Keep systems running reliably
Schedule your seasonal AC tune-up today and keep your system running at its best all year-round.
Frequently Asked Questions About Thermostat Settings in Iowa
What is the most energy-efficient thermostat setting?
68°F in winter and 78°F in summer are widely recommended for balancing comfort and efficiency.
Should I change my thermostat daily?
A programmed schedule is more efficient than manual adjustments.
Is it better to leave the AC on all day?
Maintaining a steady temperature is typically more efficient than turning it on and off frequently.
Why does my home feel warm even at 72°F?
High humidity can make the air feel warmer than it actually is.
What’s the best temperature for sleeping?
Most people sleep better in cooler temperatures, typically around 60–65°F in winter.