About The First Day of Summer (Summer Solstice), When is The First Day of Summer 2017 and The First Day of Summer 2018 2019 2020 dates…
When is The First Day of Summer 2017
The First Day of Summer 2017 (Summer Solstice) is on Wednesday, June 21, 2017
The First Day of Summer 2018
The First Day of Summer 2018 is on Thursday, June 21, 2018
The First Day of Summer 2019
The First Day of Summer 2019 is on Friday, June 21, 2019
The First Day of Summer 2020
The First Day of Summer 2020 is on Saturday, June 20, 2020
Happy The First Day of Summer 2017
The First Day of Summer
In the United States and the rest of the northern hemisphere, the first day of the summer season is the day of the year when the Sun is farthest north (on June 20th or 21st). This day is known as the Summer Solstice.
The declination of the Sun on the Summer Solstice is known as the tropic of cancer (23° 27′). In the southern hemisphere, winter and summer solstices are exchanged so that the Summer Solstice is the day on which the Sun is farthest south.
