Temperature and Projected Range for 2016

Here is the full year's graph of the eVogue's projected range vs temperature for 2016.
Summer is December to February here in Australia.
I have logged the temperatures for the drive "To Work" at about 8:30AM, the "From Work" at around 5:30PM and the "Charge" temperature at around 4AM (I start charge at 3AM and it usually stops at 5 or 5:30AM).
The magic number for 80km total range appears to be 15 degrees C.