Yield Fluctuation v 4.0

** Final version ** (Modhub one is outdated)
- Fixed errors in the logs.
- Calculated yield will be saved upon reloading a save file (make sure to save and load back in through the save file before the harvest, otherwise yield will be recalculated one more time upon loading in, and after that it will be the same for the same day, no matter how often you'll reload into your save file). 
Yield Fluctuation - Medium (original)
Realistic yield can be a blessing or a curse.
No matter what farmers do, during certain years their yield ends up being much lower than during others, depending on weather and other factors,
which can't be controlled. This mod will let you to experience that yourself.
In short, there are 3 mods with different difficulty levels of yield fluctuation, this mode will affect your yield on medium difficulty, it can differ anywhere between x0.5 to x2.5 of normal yield, in other words, some years your yield will be decreased quite a bit and other times you'll feel like you won a lottery!
It's purely RNG (Random Number Generator) based, so you won't have any input of how good yield will be, but don't forget to fertilize your fields and take care of them, otherwise your yield will be decreased even more, based on core game mechanics.
These are the results of simulating 10 years in the row, your results might differ:
Original yield without a mod was 3103 17%
With this mod:
3584 19%
2742 15%
2739 15%