Aircraft cabin temperatures vary greatly, with the extremes of the range reaching 18°C and 32.2°C (mirror), sometimes even less/more, which makes it difficult to assess appropriately how much clothing to keep on carry-on. How can one get ahead of time an approximation of the aircraft cabin temperature during a flight?
Ideally I'd like a website where one enters the flight number and flight date, and get some approximation. Or some https://flightaware.com-like website that'd log past aircraft cabin temperatures.