Climatological Map of Pennsylvania Showing the Average Temperture & Amount of Rainfall
This antique climatological map is from the Topographical Atlas of the State of Pennsylvania created by Henry F. Walling and O.W. Gray, in 1872. Highlighted in red outline color are the means of temperature for the summer, winter, and the year. Shading within the map indicates the amount of rain fall during the year.
Condition: Very Good
Map Maker: Henry Walling & O.W. Gray
Coloring: Outline Color