well it is May 12 sometimes it changes
The official name of the first day of summer is the summer solstice. It lands between June 20 and June 22 in the northern half of the Earth and between December 20 and December 23 on the southern half. It is the longest day of the year.
June 21st, 2011... first day of summer. June 20th, 2012... first day of summer. June 21st, 2013... first day of summer. June 20th, 2014... first day of summer. June 21st, 2015... first day of summer.
Chicagoans generally look at Memorial Day (end of May) as the official start of summer, though some years it has been quite cool at that time. The official end of summer is around Labor Day (first Monday in September), though it can be quite warm into October.
Ther are two main days it is official it is a certain season. I looked on my calender and it was the 21 but on other calenders it says the 20. You can pick which day.
30 august
the first day of summer is on the 1st of June 2010
The first day of summer is June 21st
Summer. The first day of summer is the longest day of the year. The first day of winter is the shortest day of the year.
The first day of summer is called the summer solstice.
The official start of the summer in Belgium is near June 21. The day varies because of the positioning of the sun during the summer solstice.
The first day of summer is June 21st.
Officially, the first day of Summer in New Zealand is the 1st of December.