On the top of our web­site is a wid­get that shows today’s high tem­per­a­ture as mea­sured from Barcelona (cour­tesy of the National Weather Ser­vice data at wunderground.com). The next line shows the cal­cu­lated aver­age for this day since records began in 1926, taken from the same sta­tion, fol­lowed by the data’s cal­cu­lated stan­dard devi­a­tion. Our his­tor­i­cal data is taken from NOAA’s National Cli­matic Data Cen­ter.