At GSO, the percentage of years in which the first 90 degree day falls in each month are as follows:
March:1.7%
April: 18.6%
May: 45.8%
June: 30.5%
July: 3.4% (4 years out of 118)
Funnily enough, 2 out of the 4 years that made it to July were 2017 & 2020, and we haven't had a March or April date since 2006.
It's going to be really close to making it to July, with a forecast high of 89 on Friday.