The Fastest-Warming U.S. States and Cities
Climate Central analyzed average annual temperature trends since 1970 in 49 states and 242 U.S. cities to understand how temperatures across the country have changed as heat-trapping pollution has continued to climb.
The fastest-warming U.S. states from 1970 to 2025 are:
- Alaska
- New Jersey
- New Mexico
- Delaware
- Massachusetts
- Vermont
The fastest-warming U.S. cities are:
- Reno, NV
- Las Vegas, NV
- El Paso, TX
- Burlington, VT
- Tyler, TX
This Climate Matters analysis is based on open-access data from the National Oceanic and Atmospheric Administration (NOAA). See Methodology for details.
The fastest-warming U.S. states from 1970 to 2025 are:
- Alaska
- New Jersey
- New Mexico
- Delaware
- Massachusetts
- Vermont
The fastest-warming U.S. cities are:
- Reno, NV
- Las Vegas, NV
- El Paso, TX
- Burlington, VT
- Tyler, TX
This Climate Matters analysis is based on open-access data from the National Oceanic and Atmospheric Administration (NOAA). See Methodology for details.