So, do you think it was hotter or colder during the Middle Ages?
perhaps we could figure that out by looking at what people back then wrote about that weather. They may not have recorded exact temperatures, but they surely talked about the weather. Surely some understanding about the weather back then could be gained.
It wouldn’t be possible to determine temperatures from that. It’s really hard to tell if a year is two degrees colder without a thermometer.
I am not talking about exact temperatures, estimates and other info about weather patterns.
It wouldn’t be very reliable. The small increases in temperature are important in the grand scheme but not noticeable by individuals in the moment, especially since it takes a while to add up. I also don’t think there are even many medieval sources that describe daily weather.