100% agree and same for down here, speaking mainly for my experience with W/NW orographic /upslope snow. The good producers are almost always at night here. Maybe places like Stowe or Jay it is more even, but I can say for down here there is a stark difference.
I feel this has been talked about at some point maybe years ago, I just cant remember that reason. I think one of the possible reasons was during the day with the Sun it can make them more convective in nature vs at night more stratiform without the daytime heating (relative). I may be completely off on that though...lol.