Quote Originally Posted by Боб Уайтман View Post
A very interesting question!
Try googling "в этот месяц" and you'll see the results. So, it is not only the question of singular-plural. There is a subtle nuance in that.
No idea, but I'm somewhat reluctant about consulting Google when it comes to the frequency of words/formulations. There seems to be a divergence as to the frequency of some words etc. I tend to consult Yandex for that kinda things as well - It's still not the best way to solve an issue. But yea, comes in handy to see what the interwebs thinks.

Bottom line is, yeah, you're right, I did google and "yandex" (to yandex...^^) -

Kewl, it occured to me that this question was a straight forward thing - turns out there is some room for debate. Appreciated.