
Ideal storage temperature is between 10-15C , definitely bellow 20C when some development may start.
Store eggs pointy end down in egg cartons, and if the eggs are going to be stored longer then 6 days, start tilting alternate ends of carton once a day to keep the eggs yolks from sticking to shell.
The hatch ability is reduced if eggs are stored longer then 14 days.
Sorry this is the best picture I have, eggs are on the basement floor left side of picture, it seems to provide the perfect temperature. I personally start turning eggs second day, because I wouldn't know which eggs were 6 days old