National Preparedness Month
Inception in 2004
September was chosen as National Preparedness Month, as the tragedies of September 11, 2001 highlighted to the nation the importance of being prepared.
September has been chosen partly because of the peak of the Atlantic hurricane season is in mid-September.
https://en.wikipedia.org/wiki/National_Preparedness_Month
2018: https://www.whitehouse.gov/presidential-actions/presidential-proclamation-national-preparedness-month-2018/
2017: No Presidential proclamation
2016: https://obamawhitehouse.archives.gov/the-press-office/2016/08/31/proclamation-national-preparedness-month-2016
2015: https://obamawhitehouse.archives.gov/the-press-office/2015/08/31/presidential-proclamation-national-preparedness-month-2015
2014: https://obamawhitehouse.archives.gov/the-press-office/2014/08/29/presidential-proclamation-national-preparedness-month-2014