Wind Chill & Heat Index Calculator

Liguori Drag Racing • Weather

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Wind Chill & Heat Index

Compare apparent temperatures using National Weather Service methods.

Starting values are examples. Enter your measurements; results update as you type.

Method & assumptions

Wind chill applies at 50°F or below and wind above 3 mph. Heat index uses the NWS Rothfusz regression and humidity adjustments only when the initial apparent-temperature test reaches 80°F. Values describe shaded conditions, not engine intake temperature.