calendar_today 28.03.2010 -
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Download Sunset Climate Zones
Pictures. It's because the usda bases their zones on the extreme minimum temperature in an area, while the sunset climate zones system uses the heat in a region as the main factor. Sunset's climate zones are based on winter minimum temperatures, but also include other factors such as summer high temperatures, length of growing season, humidity, and rainfall.
Southeast - Sunset Magazine from img.sunset02.com
Sunset's climate zone maps take all these factors into account — unlike the familiar hardiness zone maps devised by the u.s. Department of agriculture, which divides most of north america into zones. Sunset identified 14 distinct climate zones in northern california.
Sunset's climate zones take a wider range of factors into account than the usda or nadf:
Sunset publishes a series that breaks up climate zones more finely than the usda zones climate variables that reflect the capacity and detriments to plant growth are used to develop an index that is. Growing season, timing and amount of rainfall, winter lows, summer highs, and humidity. Latitude generally, the farther an area is from the equator, the longer and colder are its winters. The sunset climate zone map is another hardiness map for various plants.
