Before I turned off the rain option, the only way I knew it was windy (more than normal) was the sounds; the branches, leaves and bushes seemed to move more, but not a lot. We get a lot of wind here where I live and the sound was pretty realistic.
Hail is very similar to rain, the only way I was able to tell the difference was by watching it hit the ground, you can see the little balls of hail. And how long; the hail storms are like what we have here, suddenly show up and then just as quickly gone.
I haven't gotten that much hail, not like the rain, I was fed up with more rain days in summer and fall than clear ones. So I took out that option and fog and left hail and snow, but left winter at 7 days.
I have yet to reach Winter and Spring, have been bringing up my other towns games to date.