USDA / Sunset Zones Climate Conversion Chart

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This chart will help you to convert USDA Climate Zones to Sunset Climate Zones
by Brett · All Zones · Calculators & Charts · 0 Comments · August 24, 2011 · 18,810 views

Climate Zones



SUNSET ZONES
The Sunset zones, popularized and researched by Sunset Magazine, are derived from climate zones developed by the University of California Cooperative Extension. Sunset zones are based on a combination of extremes and averages of minimum, maximum, and mean temperature, rainfall, humidity, and the length of the growing season.

USDA ZONES
USDA zones are more widely used. These zones are based on the average minimum temperature in a given region.

CONVERSION CHART
To the right is a general conversion chart of USDA zones: (Note that the Sunset equivalent zones are rough approximations and do not correlate completely with the USDA zones.)



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