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The Heat Index is a measure of how hot it really feels when relative humidity is factored in with the actual air temperature. To find the Heat Index temperature, look at the Heat Index Chart above or check our Heat Index Calculator.
The heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. This has important considerations for the human body's comfort.
The heat index (HI) is an index that combines air temperature and relative humidity, in shaded areas, to posit a human-perceived equivalent temperature, as how hot it would feel if the humidity were some other value in the shade. For example, when the temperature is 32 °C (90 °F) with 70% relative humidity, the heat index is 41 °C (106 °F ...
Aug 25, 2023 · Heat Index Chart and Explanation. WPC Heat Index Forecasts More Meteorological Conversions and Calculations
1 day ago · Heat index measures how hot it feels outside, accounting for temperature and humidity. Map shows highest level forecast for the day. Caution Feels like 80° - 90°. Extreme caution 90° - 103 ...
heat index °f (°c) The heat index is an accurate measure of how hot it really feels when the affects of humidity are added to high temperature. RELATIVE HUMIDITY (%)
Jun 27, 2023 · The heat index is a measure of how hot it really feels outside, when humidity and other factors are considered along with the temperature, according to Kimberly McMahon, a...
Sep 20, 2023 · The chart shows the Heat Index - how hot it feels - as 109°F (43°C), which is in the orange range for DANGER. Remember, these values are in the SHADE. You can add up to 15°F (8°C) to these values if you are in direct sunlight.
1 day ago · Cities including Houston, Miami, Atlanta, Raleigh and Washington, DC, will be feeling the heat. The heat index values – how air feels to the human body – will range between 100 and 115 degrees ...
This calculator estimates heat index temperature felt by the human body based on the actual measured air temperature together with humidity level or dew point.
