I have logged each of my last 441 days using an app called My EV App, I’ve attached some pics of my results but most notable is that spring and fall are almost identical at 114 kilometres while winter at 69 kilometres and summer at 141 kilometres are almost 50% difference of each other. I live in Canada and get some pretty interesting weather throughout the year. I track the temperature in the app so I can quickly graphically see the lows and highs based on the temperatures. The app also tracks what accessories I turn on such as the ac or heater, radio etc so I can see their impact on my range. From my experience with my 2017 ED, road conditions, breaking and take off speed has huge impacts along with of course the normal ac and heater. When I hypermile it I’ve gotten 165 kilometres but you’ll notice that my average across all months is just 1.06 kilometres for each 1% of battery which equals 106 kilometres total range, this is in line with the EPA as long as it’s based on life averages because seasonally that goes up and down substantially..