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A square foot of snow does not have a weight: the depth of the snow is needed to give the weight because weight relates to the volume of snow. Even if you know the depth of the snow, say a foot, giving a cubic foot of snow, there is a wide range of possible weights because snow can vary in density depending on whether it is lightly or densely packed.

The range of density of snow compared to the density of water can vary from 100:1 (for snow that is 100 times less dense or heavy than the equivalent volume of water) to 3:1.
A more common density might be around 12:1.

Water has a mass of 1kg/L so for a cubic metre (1000L) of snow, the mass could be anything in the range of 10kg to 333kg.

Keeping that in mind, a foot of snow would be about 6.75lb to 223.82lb.

The weight of snow can not be answered based on an area of a square foot of snow: the volume is required. It also depends on the kind of snow it is. Example- packing snow will have a different weight (because of its density) than other kinds of snow.

A square foot is a measure of area, not volume. So the answer depends on two things. One is the depth, which will give us the volume, and the other is the density of the snow, which tells us how much weight there is per volume.

Unpacked, fresh fallen snow can have a density roughly of only 5% of water. That will not have much depth, however. As snow packs it can get to 30% of the density of water, so a square foot of snow one foot deep (a cubic foot) might weigh roughly twenty pounds. With more packing and passage of time this might go up to thirty pounds per cubic foot. Finally, the snow can be compressed to become ice (with a lot of air inclusions), and this might be as more than fifty pounds per cubic foot.

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โˆ™ 2015-02-13 13:31:52
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โˆ™ 2015-02-13 13:32:27

According to a news story on NBC Today Show, which aired Feb 13, 2015, one cubic square of dry snow weighs about 7 pounds. One cubic foot of "wet" snow weighs about 20 pounds. Ice adds more to the weight of both wet or dry snow. The extreme heaviness of snow, therefore, can cause multiple problems, for example, it can make roofs collapse or contribute to heart attacks from over-exertion when people are shoveling snow.

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Q: How much does a square foot of snow weigh?
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How much does 1 foot of snow weigh?

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It depends on how much you have!! One shovelful of snow, for example, weighs less than the amount of snow on your driveway. I suspect what you are really asking is not how much snow weighs but how much it weighs per cubit foot or cubic yard. Weight per unit volume is called density. But even that is tricky with respect to snow. The density of snow varies greatly. Lightly packed powder weighs very little per cubic foot, whereas slushy, wet snow can weigh over 62 pounds per cubic foot -- about the density of water.

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Melted snow is water. Water, because it is a liquid, is hard to weigh as you normally only weigh solids. Liquids would have to be measured litres or gallons. So the answer to that question would depend on how much snow had actually melted- eg. 12% ice and 78 % is water and 10% is debris caught in the snow as it fell

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