You are watching: How much snow is one inch of rain
Perform the baseline rain-to-snow conversion. The baseline proportion of rain to snow is 1 inch of rain equates to 10 inch of snow. For example, to calculate the snowfall tantamount of 3 inches of rain, multiply 3 through 10 to obtain 30 customs of eye as the baseline conversion. This conversion uses for eye falling in ~ temperatures near freezing, in between 28 and 34 levels Fahrenheit.
Find the temperature in the place for i beg your pardon you"d prefer to carry out the conversion. You can track down this details via the nationwide Weather Service, for example, or any variety of other meteorological sources, such as the Weather Channel. In general, colder temperatures make snow loss less densely and lower the rain-to-snow ratio, resulting in an ext inches of snow per inch of rain.
Adjust her conversion come account for temperature if the outside temperature is much less than or equal to 27 degrees Fahrenheit. To calculation rain to eye for temperatures between 20 and 27 degrees Fahrenheit, multiply rainfall by 15 instead of 10. Because that temperatures in between 15 and 19 levels Fahrenheit, main point rainfall by 20. Between 10 and also 14, multiply by 30; in between 0 and also 9, multiply by 40; in between -20 and also -1, multiply by 50, and also between -40 and -21, multiply by 100. Because that example, to calculation the snowfall indistinguishable of 3 inches of rain in ~ 5 degrees Fahrenheit, multiply 3 through 40 to acquire 120 customs of snow. Therefore, if 3 inch of rain space expected but the temperature drops suddenly to 5 levels Fahrenheit, 120 inches of snow will fall.
Perform the calculations in reverse to calculate snow to rain. For example, for 8 customs of snow falling at a temperature that 20 degrees Fahrenheit, division 8 through 15, due to the fact that the conversion element for 20 levels is 15. The an outcome is about 0.53 inches of rain. Therefore, 8 inches of eye that dropped at 20 levels Fahrenheit will melt under to roughly 0.53 inches of rain.
countless factors influence snow density apart from ambient temperature. Wind, for example, have the right to compact snow and also cause it come fall much more densely, lowering the rain-to-snow ratio.
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many factors impact snow density apart native ambient temperature. Wind, because that example, can compact snow and also cause it come fall more densely, lowering the rain-to-snow ratio.
Richard Graham has worked professionally as both an economist and educator since 2007. He additionally works together a consultant to little businesses and organizations focused on arising green technologies. Graham holds a Bachelor of scientific research in economics.