Heat domes, atmospheric rivers, bomb cyclones, and polar vortex—you’re not crazy, the weather is. And last week, the USDA confirmed it by releasing an updated climate zone map for 2023. For ...

The map reflects the “average lowest winter temperature” over a 30-year period at specific locations in each of the zones, according to the USDA. Overall, that average for the country was 2.5 ...

The 2012 map — which has 13 10-degree Fahrenheit zones subdivided into “A” and 13 “B” zones marked by 5-degree changes — shows that hardiness zones in many places in the country are ...

The U.S. Department of Agriculture's latest Plant Hardiness Zone Map shows Iowa is warming up, at least a little bit. Updated in November for the first time since 2012, the map, a standard guide ...

Compared to the 2012 map, the 2023 version shows that roughly half of the country shifted to the next warmer half zone, and the other half of U.S. remained in the same half zone.. According to the ...

“The 2023 map is about 2.5 degrees warmer than the 2012 map across the contiguous United States,” said Dr. Christopher Daly, a senior professor at the university and the founding director of Oregon ...

The USDA Plant Hardiness Zone Map uses weather data to map average annual extreme minimum temperatures (winter lows) over a recent 20-year period. The most recent release covers weather data from 1991 ...

Map developers from USDA and Oregon State University, updated the plant hardiness zoning for half of the country based on 30 years of climate data. ... Arizona spans across zones 5 through 10.

Each full zone is also divided into half zones. The USDA draws the map using a color-coded key for easier reference. Though it was last updated in 2012, ...

As spring nears, many are wondering what we should or shouldn't grow now that the U.S. Department of Agriculture (USDA) has updated its plant zone hardiness map and moved parts of Minnesota from ...

Arizona spans across zones 5 through 10. The new map, created by USDA's Agricultural Research Service and Oregon State University, is based on 30 years of data from 13,412 weather stations, almost ...

Arizona spans across zones 5 through 10. The new map, created by USDA's Agricultural Research Service and Oregon State University, is based on 30 years of data from 13,412 weather stations, almost ...