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Wind Chill Calculation

This programme implements the JAG/TI (Canadian model) algorithm which is now widely accepted as the standard.
Temperature (in °C) and Wind speed (in km/h) are required inputs. Range: +10 .. -20 °C, 5 .. 100 km/h. Click on the screenshot below to download the programme.

Heat Index Calculation

This programme implements the Stull algorithm which is widely used - no standard exists.
Temperature (in °C) and Relative Humidity (in %) are required inputs. Range: 20 .. 40 °C, 40 .. 99 %RH. Click on the screenshot below to download the programme.