Using this website, you will be able to identify the wet-bulb globe temperature (WBGT) guidelines most appropriate for your area.

Input your zipcode into the box, and your selected classification will be displayed with more information.

Grundstein, A., Williams, C.A., Phan, M.D., Cooper,E., (2015) Regional heat safety thresholds for athletics in the contiguous United States. Applied Geography, 56, 55-60. doi: http://dx.doi.org/10.1016/j.apgeog.2014.10.014