Àwọn

Ìgbà tí o tí ìgbà tí o bá jẹ́ nípa àwọn ìṣàmúlò-ètò àti àwọn ìjánu-ìjánú ìfẹ̀sí, láti ló fúnòlì NWS.

Àwọn ìṣàmúlò-ètò —

Tí a fi pẹ̀lú àwọn ààyè-iṣẹ́ —

Àwọn ìṣàmúlò-ètò —

Àwọn Àtòjọ-ẹ̀yàn àwọn ìṣàmúlò-ètò

Ńlà àwọn àwọn ààtò àtòjọ-ẹ̀yàn yìí?

Àkóónú ìṣàmúlò-ètò yìí

Wind chill is how cold the air actually feels on exposed skin once moving air is factored in, because wind strips away the thin insulating layer of warmed air around the body and speeds up heat loss. This wind chill calculator uses the current U.S. National Weather Service formula (adopted in 2001): in imperial units, WC(°F) = 35.74 + 0.6215T − 35.75V^0.16 + 0.4275T·V^0.16, with T the air temperature in °F and V the wind speed in mph; the metric version, WC(°C) = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965T·V^0.16, uses °C and km/h.

As a worked example, an air temperature of 20 °F with a 15 mph wind feels like about 6 °F — roughly 14 degrees colder than the thermometer reads. Raise the wind and the chill deepens, but with diminishing returns, since the V^0.16 term flattens out at high wind speeds. The calculator shows the feels-like temperature, how much colder that is than the actual air, and a table of wind chills across a range of wind speeds so you can see the trend.

The formula is only defined for cold, breezy conditions — at or below 50 °F (10 °C) and winds above about 3 mph (5 km/h) — so above those the "feels like" simply equals the air temperature. Beyond comfort, wind chill matters because it governs how fast exposed skin can freeze: the tool flags frostbite risk, which becomes serious once the wind chill drops below about −18 °C (0 °F) and can freeze skin in under 30 minutes in extreme cold.

Àwọn Àtòjọ-ẹ̀yàn

Kini àwọn ìṣàmúlò-ètò ìfẹ́fẹ́ àwọn ìṣàmúlò-ètò?

Foomu NWS (2001) ni awọn yuniti imperial jẹ WC = 35.74 + 0.6215T − 35.75V^0.16 + 0.4275T·V^0.16, pẹlu T ni °F ati V ni mph. O ṣe awoṣe ibajẹ ina lati awọ ara ti o ni irọra bi ọrinrin ti n yọ awọn awọ ti o ni irọra kuro ni ayika ara.

Ìgbà wò nínú àwọn ààyè-iṣẹ́ àwọn ààyè-iṣẹ́

It is defined for temperatures at or below 50 °F (10 °C) and winds above about 3 mph (5 km/h). Above those, wind has little cooling effect and the "feels like" equals the air temperature.

Ìgbà wo nínú ìṣàfarawé àwọn ààyè?

Nigbati o ba de isalẹ -18 °C (0 °F) frostbite di a isoro, ati isalẹ nipa -28 °C (-19 °F) oorun ti o ni ifihan le fikun ni 30 iṣẹju tabi kere si - ni kete ni diẹ sii extreme wind chills.

Ńlá àkóónú àìfẹ́ àwọn ohun-ìtàn, tàbí àwọn eniyan ní?

Àwọn ohun tí ǹbára, àwọn ohun tí ó ní àwọn ohun-ìgbára-ìfẹ́. Ìgbàdúró Ojú kọ́ọ̀kan ń tọ́ka si àwọn ìṣàfarawé àwọn ohun tí a fi pamọ́, láti jẹ́ pé a ǹfí pamọ́ jú àwọn eniyan àti àwọn ẹrankò lọ, àwọn ohun mìíràn bí árín àwọn ohun mìíràn bí árín àwọn ohun mìíràn bí a tí ǹpa àwọn ohun mìíràn.

Kini idi ti o fi jẹ pe oju-ọjọ ti o pọju ko fi pamọ́ sinu ifẹ́ ti o bá jẹ́ pe o tí ifẹ́ jú?

Fómúlà náà ló ìpele ààyè-iṣẹ́ ìfẹ́fẹ́ ààyè-iṣẹ́ 0.16, tí o pọ̀ jú àwọn ìpelè àwọn ìṣàmúlò-ètò lọ́wọ́lọ́wọ́ nínú ìbẹrẹ àtí nínú ìpàlẹ̀. Ìjáde láti 5 sí 15 mph ń sàlú àwọn ààyè-iṣẹ́ àwọn ìṣàmúlò-ètò tí a fẹ́, àwọn ìjáde láti 40 sí 50 mph ń yipadà láti inú àwọn ààyè-iṣẹ́ àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmúlò-ètò àwọn ìṣàmú

Ńlá iṣẹ́ tí àṣàfilọ́lẹ̀ náà ṣe nínú àwọn °F/mph àti °C/km/h?

Ya. Yan imperial láti fi °F àti mph àti àwọn mérítìkì fún °C àti km/h, àtí ó fi àwọn àwọn ìṣàmúlò-ètò NWS tí a bá ṣè lò. Àwọn ààyè ìfẹ́fẹ́ tí a fi gbọ́ nínú àwọn ìjánu-ìtàn mérítìkì láti jẹ́ pé àwọn ìṣàmúlò-ètò àwọn ìtàn mejì náà ní pàtó.

Nígbà wò nínú àwọn ààyè-iṣẹ́ àwọn ààyè-iṣẹ́ àwọn ààyè-iṣẹ́ tí a fi pamọ́?

Ni oke 50 °F (10 °C), tabi nigba ti oju ojo ba wa ni isalẹ nipa 3 mph (5 km/h), oju ojo ni ipa ti o kere ju ti o ba jẹ pe oju ojo ti o nifẹ bi oju ojo ti oju ojo - nitorinaa kalkulatorun yi pada ni a kaadi ju nọmba ti o kere ju lọ ninu awọn ipo wọnyi.

API — ló àwọn ìṣàmúlò-ètò yìí láti inú ìṣàmúlò-ètò

Fi àwọn ìṣàmúlò-ètò yìí kọ̀ǹpútà yìí láti jẹ́ ààyè-iṣẹ́ JSON tí a tí fi pamọ́ - kò ní bọ́tìnì kan tí a fẹ́. Fi àwọn fálù ààyè-iṣẹ́ sílẹ̀ sí bí àwọn àwọn ìṣàmúlò-ètò àti JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Ka àwọn àkọlé API kíkún →

Àwọn Ààyè Ìjánu-ìṣàmúlò-ètò

GET https://calculator.free/api/v1/wind-chill/

curl

curl "https://calculator.free/api/v1/wind-chill/?units=imperial&temp=20&wind=15"

JavaScript `fetch()`

const r = await fetch(
  "https://calculator.free/api/v1/wind-chill/?" + new URLSearchParams({
    "units": "imperial",
    "temp": "20",
    "wind": "15"
  }));
const data = await r.json();
console.log(data.results);

Results are estimates for general guidance only, not financial, medical or tax advice.

Àkóónú ìṣàmúlò-ètò yìí

Àwọn Àtòjọ-ẹ̀yàn

Àwọn Ìṣàmúlò-ètò Ìṣàmúlò-ètò

Àwọn Ààyè Ìjánu-ìṣàmúlò-ètò

curl

JavaScript fetch()

JavaScript `fetch()`