Snowfall here along the Wasatch Front is highly correlated to altitude. When the snow is just beginning to fall, before Winter really begins, you can often see the snow line distinctively as an almost straight line between the snow and no snow. I most cases, like the snowstorm that just went through, here at the edge of the mountains, the snow begins to melt almost immediately. This photo is a moderate to light snowfall. If the weather warms up above freezing, the snow will mostly disappear in a day or two.