Heat Index Calculator
The heat index calculator is designed for scientists, meteorologists, and enthusiasts to understand how humidity affects the perceived temperature. Input the temperature and relative humidity to find out the apparent temperature.
Heat Index Calculator
Results
Heat Index: N/A
Source of Data and Methodology
All calculations are based on the formulas and data provided by the NOAA's National Weather Service. All calculations are strictly based on the formulas and data provided by this source.
The Formula Explained
Glossary of Variables
- T: Air temperature (°F)
- H: Relative humidity (%)
- HI: Heat Index (°F)
How It Works: A Step-by-Step Example
To calculate the heat index, input the temperature and the relative humidity. For example, if the temperature is 90°F and the relative humidity is 85%, the heat index will tell you how hot it feels.
Frequently Asked Questions (FAQ)
What is the heat index?
The heat index is a measure of how hot it really feels when relative humidity is factored in with the actual air temperature.
Why is the heat index important?
It helps in understanding the potential risk of heat-related illnesses in extreme weather conditions.
Can the heat index be calculated in Celsius?
Yes, but conversions are necessary since the formula is based on Fahrenheit.
What is considered a dangerous heat index?
A heat index above 103°F is considered dangerous and can lead to heatstroke.
How accurate is the heat index?
The heat index provides a good approximation but may vary with individual tolerance and other environmental factors.