"Feels like" switches formula, not just number

Below about 10°C, wind chill drives "feels like." Above about 27°C, humidity (heat index) does. In between, it’s just the thermometer.

Why it works

Wind strips heat fastest when it’s already cold; humidity blocks sweat evaporation, which only matters once it’s hot. Neither effect does much in the mild middle.

Do it exactly

Estimate with the rule, then check it against the calculator that models it properly.

Open Feels Like Temperature →

More in Environmental

• Lightning distanceCount the seconds from flash to thunder, divide by 3 for kilometres (by 5 for miles).
• Air cools as you climbTemperature drops about 6.5 °C for every 1,000 m of altitude.
• Pressure halves every ~5.5 kmAtmospheric pressure falls by half roughly every 5,500 m you climb.
• Ten metres of water = one atmosphereEvery 10 m of seawater adds about 1 atmosphere of pressure.

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