Antarctic Sea Ice Extent Sep 07 2014 – 986,000 sq km above the 1981-2010 mean. Data for Day 249. Data here.

Wow. The old Daily Record is Smashed By 290,000 sq km.

Only 37 days had more Antarctic Sea Ice Extent. One of those days was in 2006. All the rest were in 2012 and 2013.