This is my complaint about PHL even when the weather is fine: CO and the airport in general doesn't staff properly for this 1st flight of the day.

Ticket counter agents show-up 30-45 mins prior to departure and as you said, the security lines don't even open up until about 20 mins prior to departure. There's often a long line of people at the PHL ticket counters ...and then a just-as-long line at security. I wish CO would shift this flight later in the morning.