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Measuring snow/rain


It may average out to 1-12 or 1-10, but it varies so much depending on conditions that without actually collecting and melting down a measureed sample there is no real good way to tell.


LawnSite Senior Member
Actual ratios of rain vs. snow depend upon several variables: how much moisture is available in the lower atmosphere and what the temperatures are at and above the surface. Twice per day, forecasters release weather ballons to collect data to determine things like moisture content and wind speeds with height in the lower part of the atmosphere. This data is put into what are called 'soundings'. These are very complicated, but essential to forecasting (especially for severe weather). Anyway, although this was slightly off the subject, it all means that 1" of rain does not always equal 10 or 12" of snow.