Mean monthly dew point temperature : January dew point -- April dew point -- July dew point -- October dew point / compiled by A. V. Dodd, U. S. Army from official hourly weather records for periods averaging 10 years in length prior to 1964 -- Mean monthly relative humidity : January relative humidity -- April relative humidity -- July relative humidity -- October relative humidity / adapted from 1:20,000,000-scale maps by Environmental Data Service, Environmental Science Services Administration records for the period 1931-1952 -- Mean annual number of days with snowfall one inch or more / compiled by Environmental Data Service, Environmental Science Services Administration for varying periods 20 years or more in length, prior to 1960.

Description:

Eight physical maps representing the United States, featuring dew point and humidity in January, April, July and October, based upon the periods recorded prior to 1964. Maps also show political boundaries, bodies of water, drainage, coastlines and islands. Maps include legends, as well as bar scales and scale statements. Presented with Albers Eq... United States

Display date:

1964

Format:

image

Collections:

Digital Public Library of America

Contributors:

David Rumsey

Publisher:

United States Department of the Interior Geological Survey

Content partner:

David Rumsey

Availability:

Not specified