The North Pole is frozen because it receives less sunlight than the rest of the planet. The Earth's axis is tilted, so the North Pole is tilted away from the sun for most of the year. This means that the sun's rays hit the North Pole at a lower angle, and they are spread out over a larger area. This results in less energy being concentrated at the North Pole, which causes the temperatures to stay cold.
In addition, the North Pole is surrounded by ice and snow, which reflect the sun's heat back into space. This further contributes to the cold temperatures at the North Pole.
The average temperature at the North Pole is -34 degrees Celsius (-29 degrees Fahrenheit). The coldest temperature ever recorded at the North Pole was -51 degrees Celsius (-60 degrees Fahrenheit).