Hi,
Could you please let me know the UnitSystem (mm, cm, inch, or feet) of the output?
data =
WeatherData["Istanbul",
"TotalPrecipitation", {{2019, 1, 1}, {2020, 12, 31}, "Month"}];
Istanbul = QuantityMagnitude[data["Values"]]
{8.01, 4.88, 2.02, 2.91, 5.23, 0.52, 0.39, 3.36, 1.03, 3.01, \
2.53, 3.72, 10.34, 5.82, 3.88, 2.51, 5.64, 3.17, 0.02, 0.23, 2.25, \
9.56, 3.52, 2.49}