Description: A map from 1910 of the United States showing the isobars of mean temperatures typical for the month of January, given in degrees Fahrenheit. The map is keyed to show the cold areas of mean temperatures below the 30° isotherm, and the more temperate regions of mean temperatures above the 50° isotherm.
Place Names: Meteorology, temperatur
ISO Topic Categories: boundaries,
climatologyMeteorologyAtmosphere,
oceans,
location,
inlandWaters
Keywords: Isothermal Chart of the United States for January, physical, meteorological, political, kClimate, physical features, major political subdivisions,
country borders, temperature, boundaries,
climatologyMeteorologyAtmosphere,
oceans,
location,
inlandWaters, Unknown, 1910
Source: Ralph S. Tarr, B.S., F.G.S.A. and Frank M. McMurry, Ph.D., New Geographies 2nd ed (New York, NY: The Macmillan Company, 1910) 224
Map Credit: Courtesy the private collection of Roy Winkelman |
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