There was (maybe still is) some confusion about what the amount shown in the DarkSky file means.
=> SI units are as follows:
==> precipIntensity: Millimeters per hour. (also for UK2 units rain is in mm)
=> A data point object contains various properties, each representing the average of a particular weather phenomenon occurring during a period of time
==> precipIntensity: The intensity (in inches of liquid water per hour) of precipitation occurring at the given time.
So it is now assumed that for a day forecast the intensity is the average for 24 hours in mm, not in inches.
The scripts display the value from the day-record but multiplied with 24 to get the daily value.
Wim