The U.S. region most impacted by polar climates is Alaska.

Alaska, especially its northern areas, experiences polar climates with long, harsh winters and temperatures that often stay below freezing. This climate is marked by limited sunlight in winter, short, cool summers, and low precipitation, mostly falling as snow. Unlike regions like Florida, Texas, and California, which have warmer and more varied climates, Alaska’s northern and interior areas have consistently cold conditions typical of polar climates, making it unique in the U.S.