Top 10 Hottest Cities in the U.S. Highlight Persistent Heat Trends
A recent analysis of the hottest cities in the United States, based on NOAA's 1991-2020 climate normals, highlights the regions with the highest annual average temperatures. Honolulu, Hawaii, tops the list with an average of 78°F (25.6°C), followed by Miami, FL, and McAllen, TX, both at 77.4°F (25.2°C). The rankings reflect a mix of tropical, coastal, and desert climates, with cities like Phoenix, AZ, and Yuma, AZ, representing the arid Southwest, while Florida cities dominate the humid subtropical category. These cities experience minimal seasonal variation, with summer highs often exceeding 100°F (37.8°C) in desert areas and high humidity levels in coastal regions. The findings underscore the diverse climatic conditions contributing to extreme heat across the U.S. 
