I bring you Realistic Temperatures – Wales, the thirteenth of a series of scripts for FS25 that will allow for more realistic and varied temperatures depending on the region you are playing. This mod also allows for rain/snow/hail to happen in more seasons, region dependent.
For example, if you want to start a game with a Welsh map you install the Wales region file and then start your game with the map.
Keep in mind if you don’t have a weather station (as is such in the screenshot) your forecasts will not be completely accurate. You can buy one in the Construction menu under Tools. There are also a few mods for more variety of them.
Must have Realistic Weather installed.
More thorough installation instructions and information in the readme file. Please read!
Taking requests! Still researching if there is a way to change the months for seasons for South America!
How It’s Made
For the first beta version of each region, I choose three cities that are spread apart in the country/region and record the last three years of highs and lows. I then take the averages and use them to reconfigure the temperature settings in the environment.xml.
For the second beta version of each region, I take those three cities and record the amount of days of each type of precipitation and then I get the amount of days without precipitation from that. I then use a weight formula I put together and the averages I got from recording the information to calculate the weight for Sun, Cloud, Rain, Snow, Hail, etc.
For the first stable version of each region, I use Google to find the seasons for each crop for the region I am working on. Once all the information is recorded, I edit each of the crops xml files to reflect this.
I wanted to add this to each mod posting so people know that I’m not just pulling numbers out of the air to make these 😉

Credits:
KGriffin