Have you ever looked at the thermostat and wondered why your home feels warmer or cooler than the actual temperature displayed? The answer often comes down to humidity. Moisture levels in the air can significantly affect how comfortable you feel, creating what is commonly known as the “feels like” temperature.
Understanding the relationship between temperature and humidity can help you improve indoor comfort, reduce energy costs and get the most from your HVAC system.
What Is the “Feels Like” Temperature?
The “feels like” temperature refers to how warm or cool the air feels to your body, rather than the actual air temperature. Humidity plays a major role in this perception.
For example, a home maintained at 78°F may feel more like 85°F when humidity levels are high because moisture in the air makes it harder for your body to cool itself through evaporation. Conversely, during dry winter months, a home set at 70°F may feel much cooler than the thermostat reading suggests.
How Humidity Affects Summer Comfort
During the summer, humidity levels naturally increase. Your air conditioner helps by removing excess moisture from the air as it cools your home. This dehumidification process is one reason air conditioning feels so refreshing.
However, when humidity levels become excessively high, your cooling system may struggle to keep up. Common signs of excess indoor humidity include:
- Sticky or clammy indoor conditions
- Foggy windows
- Musty odors
- Increased mold and mildew risk
- Reduced indoor comfort despite lower thermostat settings
When humidity remains high, homeowners often compensate by lowering the thermostat. Unfortunately, this causes the air conditioner to run longer and work harder, increasing energy consumption and wear on the system.
How Dry Winter Air Impacts Comfort
Winter often presents the opposite problem. As outdoor temperatures drop, indoor air tends to become extremely dry. Furnaces can further reduce indoor humidity levels, making your home feel cooler than it actually is.
Low humidity can contribute to:
- Dry skin and irritated sinuses
- Static electricity
- Dry wood flooring and furniture
- Increased respiratory discomfort
- A cooler “feels like” temperature
As a result, many homeowners increase thermostat settings to compensate, which can lead to higher heating costs.
The Ideal Indoor Humidity Range
For most homes, indoor relative humidity should remain between 30% and 50% throughout the year. Maintaining humidity within this range helps improve comfort, supports better indoor air quality and reduces unnecessary strain on your HVAC equipment.
Proper humidity control can also help prevent mold growth, protect wood furnishings and create a healthier indoor environment.
How Whole-Home Humidity Control Can Help
If your home struggles with excessive humidity during the summer or overly dry air during the winter, whole-home humidity control solutions may be worth considering.
These systems work alongside your HVAC equipment to maintain consistent indoor moisture levels:
- Whole-home dehumidifiers remove excess moisture during humid conditions.
- Whole-home humidifiers add moisture back into dry indoor air during winter.
By controlling humidity year-round, these systems help your home feel more comfortable at the temperature you set, potentially lowering heating and cooling costs while improving overall indoor air quality.
Improve Comfort and Efficiency Year-Round
Temperature is only part of the comfort equation. Humidity has a major impact on how your home feels and how efficiently your HVAC system operates. Understanding and managing indoor humidity can help you stay comfortable while reducing energy usage throughout the year.
If you’re experiencing humidity issues, indoor comfort problems or high energy bills, Valley Heating, Cooling, Electrical and Solar can help. Our team can evaluate your home’s indoor air quality and recommend humidity control solutions tailored to your needs.
Call (408) 819-9862 today to schedule an appointment.


