The fastest-warming states
The U.S. has seen yearly average temperatures rise over the last 50 years, particularly in the Southwest and Northeast.
This is a U.S. map shaded by how much average annual temperature has risen from 1970 to 2024. Every state has warmed, with the largest increases in Alaska and the Northeast. Alaska shows the highest rise, about 4.3°F. New Mexico, Delaware, Massachusetts, and New Jersey have all warmed around 3.6–3.7°F. Most northeastern states, including Vermont, Maine, and Rhode Island, have risen by about 3.5°F. The Southwest and parts of the Midwest also show strong warming, around 3.0–3.3°F.
