A perfect summer day is when the sun is shining the wind is blowing the birds are singing and the lawnmower is breaking. dhavalvadi 4 years ago A perfect summer day is when the sun is shining the wind is blowing the birds are singing and the lawnmower is breaking. 1 A perfect summer day is when the sun is shining the wind is blowing the birds are singing and the lawnmower is breaking. A perfect summer day is when the sun is shining the wind is blowing the birds are singing and the lawnmower is breaking.