Thread:Paul.rea/@comment-26305892-20150412180008/@comment-4091815-20150412180941

Season 1 took place in 2011 - Allison turned 17 in February. Lydia turned 17 in March.

You can back date those two with some specificity.

Scott was 16 according to Victoria Argent in Season 2 Frenemy which is in the spring of 2011. We don't have a date for his birthday so the best you could do is a rough estimate to get a birth year.

We don't have canon specific ages for the others. There were some dated props that purport to show Malia's birth date but we don't consider those canon since the years don't make sense with the details of her life laid out in the dialogue.