The Scot admits he had no idea sub-zero temperatures had caused major problems at Goodison Park until he was told the game was off.
Everton were forced to call off the Barclays Premier League fixture due to several miles of frozen water pipes at the ground.
Moyes said: "We knew nothing about it until 10.30am on the day of the game. I had no inclination there was even the remotest chance the game could be off.
"If there was I would have spoken to (Birmingham manager) Alex McLeish. I know him and I feel more for them that they had to travel up, away from their families on Christmas Day. They came and put their kit out in the morning then found out the game was off.
"But it happens. People will tell you they have had frozen and burst pipes in their homes. It is not nice when it happens and it is no different for a football club. People wouldn't have had toilet facilities for three hours, no hot drinks. It would have been very difficult to put a game on under those circumstances."
Source: PA
Source: PA