Looking For Hours/minutes Of Precipitation Data (not Amount Or % Chance)

For a travel-related project, I need a dataset that contains the total duration of rainfall, as this is the most relevant measure of whether you can spend time outside in a given location. For example: Miami might average 5cm of rainfall, but it may all happen in 30 minutes. Seattle might average only 1cm, but spread out over 8 hours of a day.

Has anyone come across a weather dataset that has precipitation duration metrics? Haven’t found anything like this on WeatherSpark, wunderground, etc.

Thanks!