The quantity of professional American football venues lacking a fixed or retractable roof is a relevant statistic for understanding the game’s environmental impact and fan experience. These facilities are subject to the prevailing weather conditions, directly influencing gameplay and spectator comfort. An example would be a game played in Green Bay, Wisconsin, in December, where below-freezing temperatures are common.
Knowing the number of these open-air arenas provides insight into various aspects of the sport. It affects player strategy, as teams must adapt to rain, wind, and snow. Furthermore, it contributes to the unique atmosphere associated with certain franchises, fostering a sense of tradition and toughness. Historically, playing outdoors was the standard, but the modern era has seen an increase in enclosed stadiums.