Final answer:
The sun rises lowest in our sky on the winter solstice, around December 21st, when the Sun's path is at its shortest and the day has the least amount of daylight for the Northern Hemisphere.
Step-by-step explanation:
The sun rises lowest in our sky on the winter solstice, which occurs around December 21st. This is the day when the Sun's path across the sky is at its shortest, resulting in the shortest day and longest night of the year.
Due to the Earth's tilt of 23.5°, the Sun's maximum altitude during the day is smallest on this date, especially for locations north of the equator. Observers will notice that both sunrise and sunset positions are at their southernmost points during the winter solstice, contributing to the shorter length of daylight.