You can also see our wind chill table if you prefer. Change the speed value (in any designation) and watch the effect. Our default values of 32 degrees Fahrenheit and 1 MPH (nautical) do NOT demonstrate the severe effect of how the air feels based on the wind chill factor. We calculate and display both and as you will see, the new formula has a more intense and chilling result. There are two formulae for calculating the wind chill effect one called the old formula and one called the (obviously) new formula. Click on the calculate button for the wind chill corrected temperature effect, displayed in degrees Fahrenheit and Celsius. You may make either temperature designation entry with any speed designation entry if you wish. Keep in mind that wind speeds of under 5 MPH have a negligible effect on the wind chill calculation. To calculate wind chill, enter the current ambient temperature in degrees Fahrenheit (☏) and enter the speed of the wind in miles per hour if you don't know those values in ☏ or MPH (statute miles per hour), enter them in ☌ and knots (often called nautical miles per hour), or KmPH (kilometers per hour) in the appropriate fields. That effect is called the wind chill factor. Often cold temperatures can feel much colder based on the speed of the wind. On cloudy or windy days, this is an overestimation of how hot it feels.This calculator requires the use of Javascript enabled and capable browsers. This WBGT index calculator uses the same approximation as the Australian Bureau of Meteorology for estimating the Wet Bulb Globe Temperature from the air temperature and relative humidity, assuming sunny day and light wind. These indicators are based on the system used by the USMC (see: for more details). Flag indicators help you to quickly identify the risks of outdoor activities. Wet Bulb Globe Temperature is an estimate of how hot it feels with humidity?Įnter the temperature and relative humidity, and Wet Bulb Globe Temperature calculates the WBGTI describing how temperature and humidity feels. **Wet Bulb Globe Temperature Calculator** This advanced model works for high and low temperatures, combining the effects of humidity and wind chill into a single 'feels like' apparent temperature. Humidex calculates the humidex from models by the Meteorological Service of Canada.Īpparent Temperature uses the three factor model developed by the Australian Bureau of Meteorology, which assumes a sunny day. Want to know the effect of humidity on how hot it feels? Humidex is a quick heat index calculator. This calculator uses the more accurate August-Roche-Magnus model and is accurate for temperatures between 32☏ (0☌) and 140☏ (60☌). Unlike some calculators which only calculate the dew point temperature, the Dew Point Calculator will also calculate the air temperature given the dew point temperature and relative humidity as well as calculate the relative humidity given the air temperature and the dew point temperature. Calculator may not be accurate outside those ranges. Notes: Windchill Temperature is defined for temperatures below 50 degrees F (10 degrees C) and wind speeds above 3 mph (4.8 kph or 1.34 m/s). It also provides the old Windchill Index in kcal/m^2/h. Wind Chill calculate the wind chill using both the new (post-2001) and old (pre-2001) Windchill Temperature (WCT) index from models by the US National Weather Service. Notes: Heat Index is defined for temperatures above 80 degrees F (27 degrees C) and relative humidity above 40%. Heat Index calculates the Heat Index from models by the US National Weather Service. Explore what-if scenarios to better understand weather modeling. Many more units included!Ĭompare various models to see which matches how you perceive the weather. Enter the wind speed in miles per hour, meters per second, kilometers per hour, or knots. Enter the air temperature in Fahrenheit or Celsius. This calculator handles both imperial and metric units (with built-in unit converter).
It contains 6 calculators in one: Heat Index, Wind Chill, Dew Point, Apparent Temperature, Humidex, and Wet Bulb Globe Temperature.
Weather Calculations is the only weather calculator you will need.
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