Mean length of freeze-free period (days) : between last 32° (F.) temperature in spring and first 32° (F.) temperature in autumn / base map by U.S. Weather Bureau ; prepared by Office of Climatology.

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Bibliographic Details
Corporate Author: United States. Weather Bureau
Other title:Map Title on verso: Mean length of period between last in spring and first in autumn of 32°F, 28°F, 20°F, and 16°F, respectively for selected stations.
Format: Map
Language:English
Published: Washington, D.C. : The Bureau : For sale by the Supt. of Docs., U.S. G.P.O., 1962.
Edition:Edition of 1962.
Series:Sheet of the National atlas of the United States.
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Earth Sciences & Map Library - Maps - Stacks

Holdings details from Earth Sciences & Map Library - Maps - Stacks
Call Number: G3701.C82 1962 .U546
G3701.C82 1962 .U546 Available Place a Hold