http://www.dailymail.co.uk/health/ar...er-adults.html
... NONSENSE!
Whilst I was born during the latter half of September - weighing [I think] an average 81/2 lbs - I reached 6ft.1" in adolescence.
Whereas, my daughter - whose birth occurred midway through August - topped the scales at a mere 5lb, 3 oz ...... understandably, I suppose, in the light of her mother's petite, scarcely 5ft frame.
Therefore, IMO, an individual's weight and height ... along with a whole gamut of other features and characteristics ... seem to be generally - though not always - determined by one's genetic inheritance.