2.5. The highest average temperature in Chicago is July at 75.1 degrees. The coldest average temperature in Chicago is February at 27.1 degrees. The most monthly precipitation in Chicago occurs in August with 4.2 inches. The Chicago weather information is based on the average of the previous 3-7 years of data. Loading...
A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.Historically the term flue meant the chimney itself. flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.
fluorine. a chemical element, atomic number 9, atomic weight 18.998. (See Appendix 6.). fluorine 18 a radioactive isotope of fluorine, atomic mass 18, having a half-life of 1.8925 hours; it has been used as a tracer in positron emission tomography. (flÅr'Än), Avoid the mispronunciation fluorÄ«ne.