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On the 2012 Plant Hardiness Zone map, Greater Columbus (and a good portion of the rest of Ohio) was in Zone 6a, where the average lowest temperature ranges from -10 to -5 degrees Fahrenheit.
2023 USDA Plant Hardiness Zone Map for Kentucky. ... How many zones are in the USDA cold hardiness map? ... You can check out your zone rating by going to planthardiness.ars.usda.gov/ and entering ...
According to the new map released in November 2023, about half of the United States has shifted to a new hardiness zone. That's really big news if you consider 80 million Americans use this map to ...
For practical purposes, Canada has adopted the American hardiness zone classification system. The 1990 version of the USDA Plant Hardiness Zone Map included Canada and Mexico, but they were removed with the 2012 update to focus on the United States and Puerto Rico. [8] The Canadian government publishes both Canadian and USDA-style zone maps. [37]
Various hardiness ratings are published. In the United States (US), the most widely used is the U.S. Department of Agriculture (USDA) system of hardiness zones based on average minimum yearly temperatures. [4] This system was developed specifically for the extremely diverse range of conditions in the US, from baking desert to frozen tundra.
Development of a new USDA plant hardiness zone map for the United States. Journal of Applied Meteorology and Climatology, 51(2), pp.242-264. Hijmans, R.J., S.E. Cameron, J.L. Parra, P.G. Jones and A. Jarvis, 2005. Very high resolution interpolated climate surfaces for global land areas. International Journal of Climatology 25: 1965-1978.
In 1990, however, the USDA combined its efforts with the U.S. National Arboretum in Washington, D.C. Using data from 14,500 weather stations, their numbers became more and more accurate.
The USDA Plant Hardiness Map indicates Ennice is located in zone 6b, with average minimum winter temperatures between -5-0°F (-20 to -18°C). [ 6 ] According to the National Weather Service, the average annual mean temperature in Alleghany County is 50.4°F (10.2°C).