June 20 2025 Calendar. Summer 2025 starts on friday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth's axis having reached. June 20, 2025 calendar date and day info with us & international holidays as well as count down.

Storms on friday night produced an estimated 5,000 to 6,000 lightning strikes. 31 rows june 2025 calendar.