Your father told you it snowed in flint on the 4th of July sometime around 1950-56 yes I don't think there was any accumilation but there was snow in the air would there be some records somewhere?

Answer 1

This type of data would really only be available from the National Climatic Data Center. The only Flint station with data during these years was located at Bishop Intl Airport, so keep in mind there may have been snow in the air in the area but not reported at the station:

There was no snow reported during any of those years on that date, and it looks very unlikely that there was snow in the air, either. 1953 might be the best candidate - the temperature that morning was 49 degrees (which then rose all the way to 80 in the afternoon) with a trace of precipitation reported. It's conceivable that it was colder in some locations nearby, but pretty unlikely that it was up to 10 degrees colder, which is right around where I would draw the cutoff for snow in the air. Tough to tell without knowing what the atmosphere was doing, and the reanalysis product that I would use to draw a weather map for that day is not working at the moment.