The question would be better: "Make It Snow On Your WordPress Site WITHOUT Jetpack" :-)

However, I am wondering who had the idea of "January 4th"? In a lot of countries it should be January 6th, and for some countries also a few days longer I guess. The "make it snow setting" should be combined with a date/ timeframe setting otherwise it's useless. At least outside of U.S.

All in all, just another reason, why Jetpack feels bloated to a lot of users/ developers...