History of heat records in major U.S. cities

<img width=“750” height=“544” src=“https://flowingdata.com/wp-content/uploads/2022/05/Tracking-the-highest-temperature-750x544.png" class=“attachment-medium size-medium wp-post-image” alt=“” loading=“lazy” srcset=“https://flowingdata.com/wp-content/uploads/2022/05/Tracking-the-highest-temperature-750x544.png 750w, https://flowingdata.com/wp-content/uploads/2022/05/Tracking-the-highest-temperature-1090x790.png 1090w, https://flowingdata.com/wp-content/uploads/2022/05/Tracking-the-highest-temperature-210 …