Matlab script to read and plot NCEP/NCAR 4x Daily Reanalysis data. You need to have Mexcdf installed on your machine (it's very easy, don't hesitate). You just need to modify for the times you want to plot. It asks you for the file. Can be 3D or 4D. Very clean and pretty.
use ncread and m_map free package as described in
Download apps, toolboxes, and other File Exchange content using Add-On Explorer in MATLAB.