PPolySim OS
For K-12 Students · Wind Chill & Heat Index

Wind Chill & Heat Index for a humidity index

Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a humidity index live below — adjust the inputs and watch it respond, right in your browser.

Wind Chill & Heat IndexLive
Apparent temperature
-13°C
actual air temperature -5 °C

Controls

Presets

The thermometer only tells half the story. In the cold, wind strips away the thin warm layer around your skin, making it feel far colder — wind chill. In the heat, humidity blocks sweat from evaporating, making it feel hotter — the heat index. Both estimate the apparent temperature your body actually experiences.

▶ Run in Python

Data Inspector

Feels like-13.0 °C
Difference-8.0 °C
Modewind chill
Warning

Governing equation

Reading this result: At 30 km/h the wind strips 8 °C off the air temperature, so exposed skin feels like -13 °C.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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Frequently asked questions

Is this good for k-12 students?
Yes — this version of "Wind Chill & Heat Index for a humidity index" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.