January 31, 1998
Wind chill temperature: The temperature of still air that would remove heat from an exposed human body as quickly as it is being removed by the existing combination of actual air temperature and wind speed.
June 26, 2001
Thermometer: An instrument that measures temperature by utilizing the changes of the physical properties of a substance when its temperature changes (expansion or contraction of mercury, for example).
September 1, 1998
Maximum (or minimum) temperature: The highest (or lowest) air temperature attained during a specific time interval, usually the 24-hour midnight-to-midnight calendar day.
June 20, 2000
Chicago's second-highest temperature: On this date (June 20) in 1953 and 1988, Chicago's temperature surged to 104, the second-highest reading ever recorded in the city in
March 4, 2002
Chicago's March temperature extremes: Based on official temperature records dating from 1872, Chicago's temperatures in March have ranged from 88(degrees) (March 29, 1986) to -12(degrees) (March 4, 1873).
January 14, 2003
Europe's lowest temperature: -67 at Ust'Shchugor, Russia, in January. The U.S. National Climatic Data Center recognizes the validity of this temperature, but the date and year are unknown.
August 21, 1996
The springs in bathroom scales may be subject to temperature changes, which can affect their readings.
December 16, 1999
Highest temperature: On July 24, 1934, the temperature soared to an incredible 109 (degrees) at Midway Airport -- the highest temperature ever recorded at a Chicago location. The city's official station, located then at the University of Chicago, reached 105 (degrees) -- the city's highest official temperature.
November 16, 1998
Dear Mr. Skilling, Is it possible for the dew point, relative humidity and temperature to be the same number? Caroyn Szepanski Whiting, Ind. Dear Carolyn, It is impossible for that occurrence in the Fahrenheit temperature scale. By definition, the dew point is the saturation temperature of air. Whenever air temperature and dew point are equal, the air is saturated and its relative humidity must be 100 percent. The only possible value at which temperature, dew point and relative humidity could be equal is 100, and a dew point of 100 degrees is impossibly high, given the Earth's present climate.