Average UV value

What is it good for?

I noticed it in the history tab. It appears to be the average including the night. Is anyone using it? The only average uv values I could find (with admittedly a short search) were average MAX values, averaged over a longer period (like a month). I’m not saying it isn’t useful, I’m just wondering what its possible use could be.

Average solar radiation I understand, as this might influence plant growth or solar panel power.