Each zone also has half-zones, with 5 degrees of difference. Arizona spans across zones 5 through 10. The new map, created by USDA's Agricultural Research Service and Oregon State University ...

In 2023, the USDA released a map based on 30-year averages of the lowest annual winter temperatures at the specific locations, split into 10-degree and 5-degree zones, and integrates data from ...

The United States Department of Agriculture (USDA) released a new version of its Plant Hardiness Zone map, the first update since 2012. This new map is a tool used to help gardeners and growers ...

The USDA’s 2023 map shows that about half of the country has shifted about one-half zone warmer than in previous ... Desert Museum (introduced by the Arizona-Sonora Desert Museum in 1981 ...

The United States Department of Agriculture (USDA) recently released its updated Plant Hardiness Zone Map. The USDA Plant Hardiness Zone Map uses weather data to map average annual extreme minimum ...

Check out the USDA hardiness zones ... and the above map can help you zero in on your area. Zone 6 States 6a & 6b Arizona 6a ...

However, the USDA noted that while some locations were up to 5 degrees warmer, they did not move into a new half zone. Overall, the 2023 map is generally about one quarter-zone warmer than ...