For 2011, according to the almanac section of Weatherunderground.com, there were 6 90 degree or better days in May, 24 in June, 27 in July, 29 (all but 2!) in August and 4 in September for a grand total of 90. There were 89 90 degree days at Peachtree-Dekalb airport.
5
18 days as of 9/2/2010
One million
Two: the spring and autumn equinoxes.
A 90 degree angle is a right angle
5,400 minutes.
90 days is 12 weeks and 6 days.
18
90 days is about three months.
There are 129,600 minutes in 90 days.
90 degree angles.90 degree angles.90 degree angles.90 degree angles.
There have not been any days that were over 90 degrees during July this year. On average, there are about 17 days in July where the temperature is over 90 degrees in Philadelphia.