The solid black line represents the total snow-covered days across the Western United States, with the most recent data circled on the end. The grey area shows the interquartile range where 50 percent of the historical data from 2001 to present falls. The dashed line in the middle of the grey area shows the average of the historical data from 2001 to present. The dotted line at the bottom depicts the lowest year on record for number of snow-covered area days; the dotted line at the top depicts the highest year on record for number of snow-covered area days.