From NSIDC: Arctic sea ice reaches minimum extent for 2014 September 22, 2014
On September 17, Arctic sea ice reached its likely minimum extent for 2014. This is now the sixth lowest extent in the satellite record and reinforces the long-term downward trend in Arctic ice extent. Sea ice extent will now begin its seasonal increase through autumn and winter. Meanwhile, sea ice in the Antarctic has surpassed the previous record maximum extent set in 2013 and is now more than 20 million square kilometers (7.72 million square miles) for the first time in the past thirty-five years. It is too soon to determine if Antarctic sea ice has reached its annual maximum.
Please note that this is a preliminary announcement. Changing winds in the Arctic could still push ice floes together, reducing Arctic ice extent below the current yearly minimum. NSIDC scientists will release a full analysis of the Arctic melt season, and discuss the Antarctic winter sea ice growth, in early October.
Here is the NSIDC graph showing the turn. The 2014 minimum has stayed within 2 standard deviations.
Since NSIDC does not give the daily data (at least the last time I looked), here is the daily data from JAXA and their graph showing the turn:
Here is the data from 9-10-14 to 9-21-14
It appears the minimum was on Sept 17th with 4.884120 million square kilometers. That makes it higher than 2013 (4.824927) and 2012 (3.177455).
The JAXA graph shows how the value fares with other averages and the two years of lowest extent:
And a zoom in on another JAXA graph showing the minimums back to 2002:
Meanwhile, the Antarctic is setting new records:
There are more graphs and comparisons at the WUWT Sea Ice Page