Through the given bar charts, we can perceive information about the precipitation rates in 1980, and 2000, which were measured in hot desert climate grasslands.
Overall, the graph illustrate, that the rainfall in 1980, was considerably more than in 2000, as the amount has been drastically decreased between those periods. In 1980, the lowest rate is approximately around 150 mm, and in 2000, it is 47 mm, while the rate is elevated roughly 53 mm in 2000, and in 1980, it is above 300 mm.
Within these two decades, the value has dropped severely about 250 mm in March, as it can be considered the biggest subside throughout the year.
Furthermore, in 1980, the precipitation rate is the highest in March, April, and May. Whereas, in 2000, it has rained the most in July, August, and November.
In 2000, the rainfall mass is fluctuating irregularly; however, in 1980, it is quite the opposite, the mass is increasing and decreasing regularly throughout the year.