I've seen the URL below posted on another site. It's an interesting chart and I'd like to determine the data distribution and standard deviation using the raw data. As you can see, it would take some time to do so. http://www.netweather.tv/forum/index.php?a...st&id=70361 I suspect it's a compilation of calculations found at: http://www.ncdc.noaa.gov/oa/climate/research/records... As yet, I've been unable to locate the raw data. Although I could use a sampling technique on the chart, I'd rather retain my sanity and, at the same time, obtain the actual sigma instead of an estimate. Can anyone here tell me (1) the original source of the chart, and (2) whether the raw data is accessible somewhere in tabular form?, Muchas gracias.
