The Kruger National Park (KNP) has more than 30 rainfall stations that record daily rainfall throughout the park. This data is compiled and sent to Nick Zambatis in the park's scientific services department once a month. If rainfall figures have been kept for more than 15 years, the long-term average for a particular station can be worked out.

The longer the rainfall has been recorded for, the more accurate the long-term average is. All stations with long-term data are combined to provide a park-wide monthly and annual average rainfall figure. The graph shows rainfall recorded across the park from September 2005 to March 2006. The park's climatic year runs from July 1 to June 30, and the long term average for the entire year is 537.2mm.