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The wet-bulb temperature is the lowest temperature that may be achieved by evaporative cooling of a water-wetted, ventilated surface.. By contrast, the dew point is the temperature to which the ambient air must be cooled to reach 100% relative humidity assuming there is no further evaporation into the air; it is the temperature where condensation (dew) and clouds would form.
For example, with clothing level = 1, metabolic rate = 1.1, and air speed 0.1 m/s, a change in air temperature and mean radiant temperature from 20 °C to 24 °C would lower the maximum acceptable relative humidity from 100% to 65% to maintain thermal comfort conditions.
Skin temperature is the temperature of the outermost surface of the body. Normal human skin temperature on the trunk of the body varies between 33.5 and 36.9 °C (92.3 and 98.4 °F), though the skin's temperature is lower over protruding parts, like the nose, and higher over muscles and active organs. [ 1 ]
Pressure at which water boils at room temperature (22 °C) (20 mmHg) [43] 5 kPa 0.8 psi Blood pressure fluctuation (40 mmHg) between heartbeats for a typical healthy adult [44] [45] 6.3 kPa 0.9 psi Pressure where water boils at normal human body temperature (37 °C), the pressure below which humans absolutely cannot survive (Armstrong limit ...
The average household size was 2.13 and the average family size was 2.80. In the city, the population was spread out, with 18.5% under the age of 18, 9.3% from 18 to 24, 38.1% from 25 to 44, 23.9% from 45 to 64, and 10.2% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 94.8 males.
The lowest official temperature of −27 °F (−33 °C) was recorded on January 20, 1985, at O'Hare Airport. [144] [147] Most of the city's rainfall is brought by thunderstorms, averaging 38 a year. The region is prone to severe thunderstorms during the spring and summer which can produce large hail, damaging winds, and occasionally tornadoes ...
Great Falls is the third most populous city in the U.S. state of Montana and the county seat of Cascade County.The population was 60,442 according to the 2020 census. [4] The city covers an area of 22.9 square miles (59 km 2) [5] and is the principal city of the Great Falls, Montana, Metropolitan Statistical Area, which encompasses all of Cascade County.
The average household size was 2.46 and the average family size was 3.06. In the city, the population was spread out, with 29.2% under the age of 18, 11.4% from 18 to 24, 26.6% from 25 to 44, 18.9% from 45 to 64, and 14.0% who were 65 years of age or older.