The Last Rose of Summer

Every year I watch Dorothy's rose by the big garden. It normally begins blooming with a huge flush of color sometime in June. It then blooms intermittently for the next month or so. It is always fun to see if I can spot what I dramatically call "the last rose of Summer" on this plant. This year, the last bloom on the canes is now full open today. In comparison, the last bloom of 2010 was on September 13th and the last bloom of 2009 was on July 29th. Our two cool Springs the last two years have certainly moved the date of the final bloom much later compared to the hot Summer of 2009. When will the last bloom open next year?