The percentage of Americans exercising frequently declined each month in 2009, amid the recession, and then recovered slightly in 2010 and 2011. In most months of 2012, more Americans than ever before reported exercising frequently. This uptick in frequent exercise last year coincided with warmer than usual temperatures, setting numerous weather records.
Temperatures seem to have settled back down in most months in 2013, though, and Americans have been less likely to exercise frequently in every month so far this year when compared with 2012.
Gallup and Healthways started monitoring U.S. adults’ exercise habits daily in January 2008 and have found that exercise is seasonal — with frequency picking up in the spring and summer and declining in the fall and winter.