how to calculate mean,5 percentile of first quartile q5, 50 percentile of second quartile q50 and 95 percentile of third quartile q95

I have thirty years of rainfall dataset and i have to calculate it's mean,5 percentile of first quartile q5, 50 percentile of second quartile q50 and 95 percentile of third quartile q95. If I have observed and modeled data of thirty years I have to make a plot which is attached. I have no idea about percentile and quartiles.Can anyone help me? In this plot red is observed data.

Answer 1

[Star Strider]

For the quantiles, use the Statistics and Machine Learning Toolbox quantile (link) function. Another option is the prctile (link) function. For the plot, use the boxplot (link) function.