More information to this "Did You Know?" question:
Well, at least sometimes a 10:1 snow to rain ratio is true. Let's look at this further...
The quick answer: sometimes.
When the temperature is around 30 degrees, one inch of liquid precipitation would fall as 10 inches of snow -- assuming the storm is all snow.
But, the amount of moisture in each snowflake differs depending on the temperature changing the snow to rain ratio.
For example, a big December snowstorm occurred with temperatures closer to 25 degrees. During that storm the snow ratio was closer to 15 inches of snow to one inch of rain. We had 1.75 inches of "liquid equivalent," yet ended up with 23.2 inches of snow, not 17.5 inches of accumulation. Learn more...
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