Summer officially began this morning at 1:45 AM. The Summer Solstice is the time period when the Sun's most direct rays are over 23.3°N. It is also the longest day of the year - days will now shorten for the rest of the year.

There is a common misconception that the Earth is closest to the Sun during summer. It's actually the opposite! On July 4
th, the Earth will be at its farthest point from the Sun - roughly 95 million miles (called the Aphelion). On January 4
th earlier this year, the Earth was at its closest point to the Sun -
approximately 91 million miles (called the Perihelion).
