Fun fact. While it was hard for me to believe but on this date there have been a total of 8 years where it has gotten 80 or better and a total of 20 years where it has gotten to 75 or better. Now here comes the fun fact. Of the years it has gotten to 80 or better 5 of the summers that followed were cooler then average and 3 were average ( 1990, 1962, 1986, 1915 and 1970 cooler. 1899,1938 and 1914 average) but even more surprising is that of all of the years that it has gotten to 75 or better on this date (a total of 20 years) only one summer was warmer that average (1911) and only three more were average (1984,1952 and 1901) the other were cooler than average. So I guess the warmer it gets today the better chance of a cool or average summer. What a way to make a long range guess.