Climate.gov has an interesting new story map tool that allows you to look at the most extreme high temperatures at thousands of US weather stations across the country. It is interesting to see how the extreme highs vary across the country. In the Southeast, the hottest temperatures are not in Florida, where ocean temperatures may play a role, but inland away from areas of sea breezes with low elevations. The coolest area in the Southeast, as you might expect, is in the Southern Appalachians. You can read more at the link below or go directly to the story map at https://storymaps.arcgis.com/stories/b8e6fdcc9b8a4d9a8ddaf37c218ffc5a.

https://www.climate.gov/news-features/understanding-climate/history-hottest-summer-day-thousands-us-locations