Zone 7

winters: moderately cold
summers: hot and dry
spring and fall: very comfortable

representative city:
Fresno, California

Zone 17

mild climate
almost constant cool winds from the ocean
plentiful sunshine all year

representative city:
Los Angeles, California

Zone 3

winters: somewhat cold
summers: very hot & humid
spring and fall: generally pleasant

representative city:
Charleston, South Carolina

The National Oceanic and Atmospheric Administration (NOAA) collects and publishes weather and climate data for the United States, which is comprised of 17 climatic zones.