I tried to take a pic of the appropriate data whenever I plugged in. The "avg. energy since last charge" numbers I recorded were: 242, 228, 231, then the dreaded 390 in the rain, 339 after a stop to look through the map, 349 to the SC in Lebanon IN, then 245 for the rest of the trip home. Then 222 for a local drive and 265 on an admittedly hotdoggin' race back to return the car in time. Big fun in busy, high speed interstate traffic. See a spot in traffic ahead? No problem, just point and shoot; you're there.
But anyway, my concern remains. Well, at least my wife's (and thus mine): how does the route planner take weather into account? Is there a connection to a weather station or something? Sounds kind of fantastical I know, but with Tesla, who knows!