Read this on msn website;

It seems the weather before conception might influence your baby's gender. A German study looked at weather patterns and births, over 50 years. It found unseasonably hot weather a month before conception led to more boys and especially cold weather led to more girls. The thinking is, the hotter weather might effect dad's testes, and result in more Y chromosome sperm, which produces boys.
I conceived both my daughter's in May and July. Cool/cold weather.

I conceived my son in early April (here in Qld...feb/march can still be quite warm/hot!)

I conceived this baby in September.. I wonder... I have to wait though (19 week ultrasound ...crossed legs!!). I had sex right before ovulation though (1 day before), so I'm thinking BOY! (the ovulation theory has always worked for me as well!..both girls were conceived days before ovulation).

What is your experience? Did you conceive any boys when the weather was hot the month before? Or conceive girl's in cold weather?