How is this effect achieved? The main thing is adding a single snowflake somewhere along the top of the page (or element) and then moving that snowflake to the bottom. And then doing that again and again, while mixing up the snowflake size/color and movement speed/direction to make it look a little more interesting. Here’s the function (requires jQuery):
To call this function, you simply pass in the element where you want the snow flurries, like letItSnow("#upstate-ny") or letItSnow("body").