The weather forecast says there will be precipitation?

The abscissa is hours, the ordinate is precipitation (mm), and the histogram is hourly precipitation. For example, the precipitation of 13 on the map is 2mm (representing the precipitation of 1 2-13 within an hour); It is worth noting that it seems to be rounded off now, that is, 2 mm may be 2 mm, and there may be a few millimeters of precipitation without precipitation.

I hope I can help you.