What it does show is the incentive to get Saturday games on, thinking about the freezing weather leading up to Saturday. The big disparity in attendances particularly in Winter between Tues and Sat games is probably reflected in a difference in about £20,000 before taking into account drink and food.
Not sure what cold weather mitigations we have but if a smaller budget protected a vulnerable part of the pitch with a cover, it would surely be worth it if it ensured the game was on.