[Utah-astronomy] Clear, Partly Cloudy and Cloudy Nights

This link: http://www.cloudynights.com/ubbthreads/attachments/4837784-Clouds_1.jpg shows a bunch of western cities and the amount of clear days vs partly cloudy and cloudy. Salt Lake is listed as the 45th city with only 34.2% of the total days clear. The break out is 125 clear days, 101 partly cloudy days and a 139 days cloudy. How does that measure with what others may have gathered in terms of data? -- Jay Eads