My 2014 Gen 1 shows 11.3kwh extracted from battery in todays 10F temps today, how?

So ass we know the gen 1 battery pack for 2014 has I believe a 10.7 usable size of the batter to get the 38 miles at least rated. So today in NY its been oh about 10 degrees all day. I was able to get 24miles out of what the monitor showed 11.3kwh. How can this be? Now my 4yr old volt has been averaging 10.3 for the last few seasons which is expected after being 4 years old so degradation is great. But how is it possible to get 11.3 on such a cold day? Note I did preheat the volt for one iteration of 10 minutes or cycle. Is it possible the 11.3kwh includes the extra amountt consumed while plugged in and preheating/pre conditioning?