hook (filter): Filter the holiday snow JavaScript URL.
hook (filter): Filter whether it's winter or not.<p>You can use this filter if, for example, you live in the Southern Hemisphere. In that case, the dates for winter above are incorrect for your location.</p> View Example
hook (filter): Allow holiday snow.<p>Note: there's no actual randomness involved in whether it snows or not, despite the filter mentioning a "chance of snow."</p>
