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USDA Plant Hardiness Zone Map 



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01 



ALEUTIAN /ISLANDS 



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AVERAGE ANNUAL MINIMUM TEMPERATURE 



Temperature CO 



Zona 





rempera 



ture (°F) 



-45.6 and Below 



1 





Below - 



50 



-42.8 to -45.5 



2a 





-45 to - 



50 



-40.0 to -42.7 



2b 





-40 to - 



45 



-37.3 to -40.0 



3a 





-35 to - 



40 



-34.5 to -37.2 



3b 



- 



-30 to - 

 -25 to - 



35 



-31.7 to -34.4 



4a 



30 



-28.9 to -31.6 



4b 





-20 to 



-25 



-26.2 to -28.8 



5a 





-15 to 



-20 



-23.4 to -26.1 



5b 





-10 to 



-5 to 



-15 



-20.6 to -23.3 



6a 





-10 



-17.8 to -20.5 



6b 





to 



-5 



-15.0 to -17.7 



7a 





5 to 

 10 to 







-12.3 to -15.0 



7b 





5 



-9.5 to -12.2 



8a 





15 to 

 20 to 



10 



-6.7 to -9.4 



8b 





15 



-3.9 to -6.6 



9a 





25 to 



20 



-1.2 to -3.8 



9b 





30 to 



25 



1.6 to -1.1 



10a 





35 tc 



30 



4.4 to 1.7 



10b 





40 tc 



35 



...... 



11 





1 40 and Above 



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W 106 °W 1 Jo w 10 J 



88°W 



86l°W 



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