Sussex Scrapbook
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Nature walks throughout the year
Wind chill calculator
Wind chill is the perceived decrease in air temperature felt by the body on exposed skin due to the flow of air.
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|
Actual temperature oC |
||||||
| 2 | -1 | -3 | -6 | -9 | -12 | -15 | |
|
Wind speed km/h |
Apparent temperature oC | ||||||
| 0 | 2 | -1 | -3 | -6 | -9 | -12 | -15 |
| 8 | -1 | -3 | -6 | -9 | -12 | -15 | -18 |
| 17 | -6 | -9 | -12 | -15 | -18 | -23 | -26 |
| 25 | -9 | -12 | -15 | -18 | -23 | -26 | -32 |
| 33 | -12 | -15 | -18 | -23 | -26 | -32 | -34 |
TWC = 13.12 + 0.6215Ta - 11.37V = 0.16 + 0.3965TaV + 0.16
Where TWC is the wind chill index, based on the Celsius temperature scale, Ta is the air temperature in degrees Celsius (°C), and V is the wind speed at 10 metres (standard anemometer height), in kilometres per hour (km/h)