1936 usda zones, US

Leo Martin stnalpsoel@gmail.com
Sun, 07 May 2017 09:35:17 PDT
Bob posted a link to a photograph of a USDA climate zone map from 1936.
Were the temperature ranges for each zone the same then as they are now?

Leo Martin
Zone ?
Phoenix Arizona USA
_______________________________________________
pbs mailing list
pbs@mailman1.ibiblio.org
http://pacificbulbsociety.org/list.php
http://pacificbulbsociety.org/pbswiki/


More information about the pbs mailing list