The weather seems way out of whack

I'm trying to start several different championships, and if I start in January of 2023, I always get heavy rain. I tried to look for history data (weather underground), and when I go to these cities, there is no precipitation.
It doesn't seem to matter if I change the date slightly, it always rains, on and off, heavy.
I'm just curious as to why this happens or if I'm doing something wrong. I may as well just run clear weather but I thought the point was to simulate the real world.
How do most of you verify if your weather is correct for your race date, or do you just trust the system or set your own?

(edit) I'm starting in South America at some of the Brazilian tracks, but it doesn't matter if I change the location. I've tried about 4 different tracks. Practice starts out sunny then as soon as I get on the track.. here comes the rain lol..

Jeff

 

I think this is a "known" bug, at least it's something I've read about before that the weather doesn't play nice in Championships.

Found it:
The 'What Are You Currently Doing in AMS2?' Thread (Discussion of Most Fun Ways to Play AMS2)