February precipitation totals12/17/2022 A ratio of 10-to-1 for snow to rain is often used to estimate the water equivalent of snow (so that a 10 inch snow would equal a 1-inch rainfall) but in actuality a heavy wet snow can have a snow to water ratio of 5:1 and a very light fluffy snow in frigid weather can be more like 15:1. The values include the water equivalent of snowfall which contributes to the total precipitation an area receives each year. Annual average precipitation for the US from 1961-1990.įigure A shows the average precipitation totals for the contiguous US. Values cited in the text are calculated from precipitation averages during the years of 1895-2009 that are supplied by the SERCC.įigure A. Maps are included here for precipitation averages from the years 1961-1990 that were produced by the National Climatic Data Center. For the purposes of the information provided below, those are the states that will be discussed. The Southeast Regional Climate Center (SERCC) includes Virginia, Florida, Georgia, North Carolina, Alabama, and South Carolina as states included in the "Southeast". I should already be familiar with: Precipitation Types, Lifting Mechanisms By understanding patterns of precipitation, areas prone to flooding can be better equipped during time of need. Why do I care? Precipitation types and patterns influence the vegetation that is supported in certain areas and what types of crops can be grown. The Southeast gets an average of around 50 inches of precipitation each year, including some frozen precipitation in all areas except most of Florida and southern Georgia. The Southeast (as defined here) includes NC, SC, AL, GA, FL, and VA.
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