I am not good at programming, so I would ask for your understanding concerning my question.
I have an attribute table that contains five columns which are: (Date, ID, Latitude, Longitude, Rainfall). Rainfall for different periods of time (which are defined in column "Date") have been recorded in certain stations. In the column "ID" is the ID of the station on which the recording has been made for a specific period of time. Every station has a unique ID, but at the same location, rainfall has been recorded for different time periods. On the column "Rainfall" appears the amount of rain that was recorded on the specific time and the specific station.
My question is, how can I get the total rainfall in a certain station that has been recorded, using all the records in column "Date" that refer to that specific station. Could I somehow use the coordinates of its station to get the total rainfall that has occurred on that specific station?
The software I use is QGIS 2.4 on Windows machine.