{"date":"1973-09-09","county":"Boulder","state":"Colorado","page":"https://www.myhailscore.com/storm/1973-09-09/boulder-county-co","license":"Free to cite with attribution to HailScore (myhailscore.com). Underlying weather data: NOAA (public domain).","disclaimer":"Hail exposure record, not a damage determination. Radar-estimated sizes carry roughly a ±0.25 inch margin versus ground measurements.","status":"verified","source":"NOAA Storm Events Database (NCEI)","maxHailSizeInches":1.5,"eventCount":1,"firstEventUtc":"1973-09-09T02:00:00.000Z","lastEventUtc":"1973-09-09T02:00:00.000Z","events":[{"noaaEventId":"9989323","hailSizeInches":1.5,"timeUtc":"1973-09-09T02:00:00.000Z","lat":40.17,"lon":-105.07}],"dataCurrentAsOf":"2026-07-11T23:25:03.612Z"}