But in fairness, there really haven't been a lot of decades between the 1980s and the current one

Virginia: Mild temperatures make this the coolest August in years -- dailypress.com

This summer, Hampton Roads has had the lowest average temperature in five years. In fact, this decade has been cooler than previous decades. Since 2000, Hampton Roads has seen 58 days when the official temperature has climbed above 90. That represents the smallest total since the 1980s.