I would think social customs
Weather can change from hour-to-hour and day-to-day, and can differ based on atmospheric changes and humidity, among other factors. Climate is the average of an area's weather over a period of time - a pattern that typically occurs over many years.
To answer this question you will find the volume of the cylinder and the volume of a cone and divide them in that order.
Anders will need 2 cone containers filled with plaster to fill the cylinder cast.
See the attached pic.