Another datapoint... Just completed another 2000+ mile road trip. Yesterday the longest leg was Jackpot NV to Brigham City UT (EA). 211 miles, left the hotel at 100%. Arrived at 21%. Calculates to 267 miles of range. Mix of 70-80 MPH speeds. 55F-70F temps.
Did the same drive in January in the cold (20F-40F) and would have arrived at just 5% (222 mile range). Ended up doing a short charge stop along the way to add 10% and really arrived at 15%, but for the whole leg it used 95% that time.