How this is built. The share is a county's hail events measuring 1.75" or more, divided by all of its recorded hail events, 2016–2025. The national line is 19,666 ÷ 87,206 = 22.6%. Bars are drawn against a fixed 50% ceiling so adding a county never rescales the others. Counties with fewer than 40 recorded events are shown but not judged. The caveat: NOAA counts reports, not storms, and reporting follows population — so rural counties are undercounted on volume. That is exactly why this tool leads with the share rather than the count: the share is far less sensitive to how many people were around to call it in.
Pull your last five years of jobs and mark which came from a storm. If the weather was there and the work was not, that is a coverage problem, not a demand problem. We can show you which roofs the storms actually hit.
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