have an average July temperature of 82°, while at Point Reyes, on the Pacific coast of the same State, the corresponding temperature is 54°.
The temperature anomalies in the southern hemisphere are nowhere greatly in excess of 10°.
ABSOLUTE EXTREMES OF TEMPERATURE. --The highest temperatures occur in northern Africa, in the interior of Australia, in southwestern Asia, and in southwestern North America. Ouargla, Algeria, has a record of 127.4° on July 17, 1879; Jacobadad, India, 126.0° on June 13, 1897; while Mammoth Tank, California, has a record of 128° in June, 1887.
The minimum temperatures of Siberia and North America are much lower than any that have been observed in the southern hemisphere. Hann states that the lowest temperature ever observed was -90.4° at Verkhoyansk, in Siberia. The lowest temperature ever recorded in the United States was 63.1°, at Poplar River, Montana, the elevation of the station being 2,030 feet. At Cape Adair the lowest temperature recorded during the year the station was in operation was -43.1° in August. The lowest temperature recorded in the Antarctic by Shackleton was -57° on August 14, 1908.
HANN J., "Handbuch der Klimatologie," 3d ed., v. 1, Stuttgart, 1908.
HANS J., "Handbook of Climatology," 2d ed., Pt. I, translated by R. DeC. Ward, New York, 1903.
HANN J., "Lehrbuch der Meteorologie," 2d ed., Leipzig, 1906.
GARRIOTT E. B., "Notes on Frost," Revised ed., Washington, 1908. ( United States Department of Agriculture, Farmers' Bulletin 104.)
McADIE ALEXANDER G., "Frost Fighting," Washington, 1900. ( United States Weather Bureau, Bulletin 29.)
WILLIAMS H. E., "Temperatures Injurious to Food Products in Storage and During Transportation, and Methods of Protection from the Same," Revised ed., Washington, 1896. ( United States Weather Bureau, Bulletin 13.)