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Wind Chill Calculator

Yksiköt:

Temperature (°C)

Wind Speed (km/h)

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Mikä on Wind Chill Calculator?

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The wind chill index measures the perceived decrease in air temperature felt by the body due to wind. Wind accelerates heat loss from exposed skin, making it feel colder than the actual temperature.

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Kaava

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f(x)WC (°F) = 35.74 + 0.6215×T − 35.75×(V^0.16) + 0.4275×T×(V^0.16), where T=°F, V=mph

Muuttujan selitys

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Symboli	Nimi	Yksikkö	Kuvaus
WC	Wind Chill	°F	—
T	Air temperature	°F	—
V	Wind speed	mph	—

Kuinka Wind Chill Calculator

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1Wind chill (°C) = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965T×V^0.16
2T = air temperature (°C); V = wind speed (km/h)
3Only meaningful when T < 10°C and V > 4.8 km/h
4Wind speeds above 80 km/h have diminishing additional effect

Ratkaistut esimerkit

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Esimerkki 1

Annettu:Temperature −10°C, wind 40 km/h

Tulos:Wind chill = 13.12 + 0.6215×(−10) − 11.37×40^0.16 + 0.3965×(−10)×40^0.16 ≈ −20°C

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Winter weather advisory issuance

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Outdoor activity safety (hiking, sports)

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Occupational health (outdoor workers)

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Frostbite risk assessment

Wind Chill Reference Chart (°C)

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Temp	10 km/h	20 km/h	40 km/h	60 km/h
-5	-10	-13	-15	-17
-10	-15	-19	-22	-25
-15	-21	-26	-30	-33
-20	-27	-33	-38	-41

Usein kysytyt kysymykset

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Is wind chill real or just perceived?

Real: wind accelerates heat loss from exposed skin. Doesn't change actual air temperature, but speeds freezing.

What wind chill is dangerous?

Below −15°F: frostbite possible in 30 min. Below −25°F: frostbite in 10 min. Below −35°F: frostbite in <5 min.

How fast does wind speed need to be for wind chill?

3 mph minimum for meaningful effect. Higher speeds = greater wind chill. Wind chill maxes out around 60 mph.

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›Wind chill — Environment and Climate Change Canada

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Reviewed October 2026

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Wind Chill Calculator