Dogs can suffer burns on their paws on days where you might even think that it was cooler. This is because pavement can trap heat from the sun, making it much hotter than the air.
For example, if the temperature was 77 degrees Fahrenheit, with a light breeze and low humidity, you might think that the temperature was lower than it was.
However, the pavement can still be temperatures as high as 125 degrees Fahrenheit – almost double the temperature in the air.