When does the sun reach the most northern point in US?

The sun reaches its most northern point in the U.S. during the summer solstice, which typically occurs around June 21 each year. On this day, the sun is directly overhead at noon at the Tropic of Cancer, and locations in the northern hemisphere, including the northernmost points in the U.S., experience the longest daylight hours. This results in the sun appearing at its highest elevation in the sky for those areas.